素问·气交变大论 Great Treatise on Mutations in the Exchange of Qi

第 69 篇 / 共 81 篇

黄帝问曰:五运更治,上应天朞,阴阳往复,寒暑迎随,真邪相薄,内外分离,六经波荡,五气倾移,太过不及,专胜兼并,愿言其始,而有常名,可得闻乎。歧伯稽首再拜对曰:昭乎哉问也,是明道也。此上帝所贵,先师传之,臣虽不敏,往闻其旨。帝曰:余闻得其人不教,是谓失道,传非其人,慢泄天宝。余诚菲德,未足以受至道,然而众子哀其不终,愿夫子保于无穷,流于无极,余司其事则而行之,柰何。歧伯曰:请遂言之也。上经曰:夫道者,上知天文,下知地理,中知人事,可以长久,此之谓也。帝曰:何谓也。歧伯曰:本气,位也。位天者,天文也。位地者,地理也。通于人气之变化者,人事也,故太过者先天,不及者后天,所谓治化而人应之也。

帝曰:五运之化,太过何如。歧伯曰:岁木太过,风气流行,脾土受邪。民病飱泄食减,体重烦冤,肠鸣腹支满,上应岁星。甚则忽忽善怒,眩冒巅疾,化气不政,生气独治,云物飞动,草木不宁,甚而摇落,反脇痛而吐甚,冲阳绝者,死不治,上应太白星。岁火太过,炎暑流行,金肺受邪。民病疟,少气咳喘,血溢血泄注下,嗌燥耳聋,中热肩背热,上应荧惑星。甚则胸中痛脇支满脇痛,膺背肩胛间痛,两臂内痛,身热骨痛,而为浸淫。收气不行,长气独明,雨水霜寒,上应辰星。上临少阴少阳,火燔焫,冰泉涸,物焦槁,病反谵妄狂越,咳喘息鸣,下甚血溢泄不已,太渊绝者,死不治,上应荧惑星。岁土太过,雨湿流行,肾水受邪。民病腹痛,清厥意不乐,体重烦冤,上应镇星。甚则肌肉萎,足痿不收,行善瘈,脚下痛,饮发中满食减,四支不举。变生得位,藏气伏,化气独治之,泉涌河衍,涸泽生鱼,风雨大至,土崩溃,鳞见于陆,病腹满溏泄肠鸣,反下甚而太溪绝者,死不治,上应岁星。岁金太过,燥气流行,肝木受邪。民病两脇下少腹痛,目赤痛眦疡耳无所闻。肃杀而甚,则体重烦冤,胸痛引背,两脇满且痛引少腹,上应太白星。甚则喘咳逆气,肩背痛,尻阴股膝髀腨䯒足皆病,上应荧惑星。收气峻,生气下,草木敛,苍乾凋陨,病反暴痛,胠脇不可反侧,咳逆甚而血溢,太冲绝者,死不治,上应太白星。岁水太过,寒气流行,邪害心火。民病身热烦心躁悸,阴厥上下中寒,谵妄心痛,寒气早至,上应辰星。甚则腹大胫肿,喘咳寖汗出憎风,大雨至,埃雾朦郁,上应镇星。上临太阳,雨冰雪霜不时降,湿气变物,病反腹满肠鸣溏泄,食不化,渴而妄冒,神门绝者,死不治,上应荧惑辰星。

帝曰:善。其不及,何如。歧伯曰:悉乎哉问也。岁木不及,燥乃大行,生气失应,草木晚荣,肃杀而甚,则刚木辟著,悉萎苍乾,上应太白星,民病中清,胠脇痛少腹痛,肠鸣溏泄,凉雨时至,上应太白星,其谷苍。上临阳明,生气失政,草木再荣,化气乃急,上应太白镇星,其主苍早。复则炎暑流火,湿性燥,柔脆草木焦槁,下体再生,华实齐化,病寒热疮疡痱胗痈痤,上应荧惑太白,其谷白坚。白露早降,收杀气行,寒雨害物,虫食甘黄,脾土受邪,赤气后化,心气晚治,上胜肺金,白气乃屈,其谷不成,咳而鼽,上应荧惑太白星。岁火不及,寒乃大行,长政不用,物荣而下凝,惨而甚则阳气不化,乃折荣美,上应辰星,民病胸中痛脇支满两脇痛,膺背肩胛间及两臂内痛,郁冒朦昧,心痛暴喑,胸腹大脇,下与腰背相引而痛,甚则屈不能伸,髋髀如别,上应荧惑辰星,其谷丹。复则埃郁大雨且至,黑气乃辱,病鹜溏腹满,食饮不下,寒中肠鸣,泄注腹痛,暴挛痿痹,足不任身,上应镇星辰星,玄谷不成。岁土不及,风乃大行,化气不令,草木茂荣,飘扬而甚,秀而不实,上应岁星,民病飱泄霍乱,体重腹痛,筋骨繇复,肌肉瞤酸,善怒,岁气举事,蛰虫早附,咸病寒中,上应岁星镇星,其谷黅。复则收政严峻,名木苍凋,胸脇暴痛,下引少腹善大息,虫食甘黄,气客于脾,黅谷乃减,民食少失味,苍谷乃损,上应太白岁星。上临厥阴,流水不冰,蛰虫来见,藏气不用,白乃不复,上应岁星,民乃康。岁金不及,炎火乃行,生气乃用,长气专胜,庶物以茂,燥烁以行,上应荧惑星,民病肩背瞀重,鼽嚏血便注下,收气乃后,上应太白星,其谷坚芒。复则寒雨暴至,乃零冰雹霜雪杀物,阴厥且格阳,反上行头脑户痛,延及囟顶发热,上应辰星,丹谷不成,民病口疮,甚则心痛。岁水不及,湿乃大行,长气反用,其化乃速,暑雨数至,上应镇星,民病腹满身重,濡泄寒疡流水,腰股痛发,膕腨股膝不便,烦冤足痿清厥,脚下痛,甚则跗肿,藏气不政,肾气不衡,上应辰星,其谷秬。上临太阴,则大寒数举,蛰虫早藏,地积坚冰,阳光不治,民病寒疾于下,甚则腹满浮肿,上应镇星,其主黅谷。复则大风暴发,草偃木零,生长不鲜,面色时变,筋骨并辟,肉膶瘛,目视䀮䀮,物疎璺,肌肉胗发,气并鬲中,痛于心腹,黄气乃损,其谷不登,上应岁星。

帝曰:善。愿闻其时也。歧伯曰:悉哉问也。木不及,春有鸣条律畅之化,则秋有雾露清凉之政。春有惨凄残贼之胜,则夏有炎暑燔烁之复。其眚东,其藏肝,其病内舍胠脇,外在关节。火不及,夏有炳明光显之化,则冬有严肃霜寒之政。夏有惨凄凝冽之胜,则不时有埃昏大雨之复。其眚南,其藏心,其病内舍膺脇,外在经络。土不及,四维有埃云润泽之化,则春有鸣条鼓拆之政。四维发振拉飘腾之变,则秋有肃杀霖霪之复。其眚四维,其藏脾,其病内舍心腹,外在肌肉四支。金不及,夏有光显郁蒸之令,则冬有严凝整肃之应。夏有炎烁燔燎之变,则秋有冰雹霜雪之复。其眚西,其藏肺,其病内舍膺脇肩背,外在皮毛。水不及,四维有湍润埃云之化,则不时有和风生发之应。四维发埃昏骤注之变,则不时有飘荡振拉之复。其眚北,其藏肾,其病内舍腰脊骨髓,外在溪谷踹膝。夫五运之政,犹权衡也,高者抑之,下者举之,化者应之,变者复之,此生长化成收藏之理,气之常也,失常则天地四塞矣。故曰:天地之动静,神明为之纪,阴阳之往复,寒暑彰其兆,此之谓也。

帝曰:夫子之言五气之变,四时之应,可谓悉矣。夫气之动乱,触遇而作,发无常会,卒然灾合,何以期之。歧伯曰:夫气之动变,固不常在,而德化政令灾变不同其候也。帝曰:何谓也。歧伯曰:东方生风,风生木,其德敷和,其化生荣,其政舒启,其令风,其变振发,其灾散落。南方生热,热生火,其德彰显,其化蕃茂,其政明曜,其令热,其变销烁,其灾燔焫。中央生湿,湿生土,其德溽蒸,其化岂备,其政安静,其令湿,其变骤注,其灾霖溃。西方生燥,燥生金,其德清洁,其化紧敛,其政劲切,其令燥,其变肃杀,其灾苍陨。北方生寒,寒生水,其德凄沧,其化清谧,其政凝肃,其令寒,其变凓冽,其灾冰雪霜雹。是以察其动也,有德有化,有政有令,有变有灾,而物由之,而人应之也。

帝曰:夫子之言岁候,不及其太过,而上应五星。今夫德化政令灾眚变易,非常而有也,卒然而动,其亦为之变乎。歧伯曰:承天而行之,故无妄动,无不应也。卒然而动者,气之交变也,其不应焉。故曰应常不应卒,此之谓也。帝曰:其应柰何。歧伯曰:各从其气化也。帝曰:其行之徐疾逆顺何如。歧伯曰:以道留久,逆守而小,是谓省下。以道而去,去而速来,曲而过之,是谓省遗过也。久留而环,或离或附,是谓议灾与其德也。应近则小,应远则大。芒而大倍常之一其化甚,大常之二其眚即也。小常之一其化减,小常之二是谓临视,省下之过与其德也。德者福之,过者伐之。是以象之见也,高而远则小,下而近则大,故大则喜怒迩,小则祸福远。岁运太过,则运星北越,运气相得,则各行以道。故岁运太过,畏星失色而兼其母,不及,则色兼其所不胜。肖者瞿瞿,莫知其妙,闵闵之当,孰者为良,妄行无徵,示畏侯王。帝曰:其灾应何如。歧伯曰:亦各从其化也,故时至有盛衰,凌犯有逆顺,留守有多少,形见有善恶,宿属有胜负,徵应有吉凶矣。帝曰:其善恶,何谓也。歧伯曰:有喜有怒,有忧有丧,有泽有燥,此象之常也,必谨察之。帝曰:六者,高下异乎。歧伯曰:象见高下其应一也,故人亦应之。

帝曰:善。其德化政令之动静损益,皆何如。歧伯曰:夫德化政令灾变,不能相加也。胜复盛衰,不能相多也。往来小大,不能相过也。用之升降,不能相无也。各从其动而复之耳。帝曰:其病生何如。歧伯曰:德化者气之祥,政令者气之章,变易者复之纪,灾眚者伤之始,气相胜者和,不相胜者病,重感于邪,则甚也。帝曰:善。所谓精光之论,大圣之业,宣明大道,通于无穷,究于无极也。余闻之,善言天者,必应于人,善言古者,必验于今,善言气者,必彰于物,善言应者,同天地之化,善言化言变者,通神明之理。非夫子,孰能言至道欤。乃择良兆而藏之灵室,每旦读之,命曰气交变,非齐戒不敢发,慎传也。

Huangdi asked: The five movements alternate in governance, corresponding above to the cycle of heaven; yin and yang go and return, cold and heat follow one another in succession; the true qi and the pathogenic contend with each other, so that inner and outer become separated; the six channels surge and billow, the five qi tilt and shift; there is excess and deficiency, singular domination and mutual encroachment. I wish to hear of their origin, and of the constant names by which they are known — may I hear of this? Qibo bowed his head twice and replied: How illuminating is this question — it concerns the manifest Dao. This is what the High Sovereigns of old prized, and what my former teachers transmitted to me. Though I am unworthy, I have in the past heard its essential meaning. Huangdi said: I have heard that to find the right person and not teach him is called losing the Dao, while to transmit it to one who is not the right person is to squander the treasures of Heaven carelessly. My virtue is truly meager, insufficient to receive the utmost Dao; yet I grieve for the many who lack an end to their teaching, and I wish that you, Master, would preserve this knowledge without end, transmitting it without limit, so that I, charged with this office, may model myself upon it and put it into practice. What should be done? Qibo said: Allow me to speak of it fully. The Upper Canon states: 'As for the Dao, one who above understands the patterns of heaven, below understands the patterns of earth, and in the middle understands the affairs of man, may endure long' — this is what is meant. Huangdi said: What does this mean? Qibo said: The root of qi lies in position. What occupies the position of heaven is the pattern of heaven; what occupies the position of earth is the pattern of earth; and what penetrates the transformations of human qi is the affairs of man. Therefore, when a movement is in excess, it arrives ahead of the heavenly cycle; when it is deficient, it arrives behind the heavenly cycle — this is what is meant by governance and transformation to which man responds.

Huangdi said: When the transformations of the five movements are in excess, what happens? Qibo said: When in a given year wood is in excess, wind qi circulates prevalently, and the spleen, [governed by] earth, receives the pathogenic influence. People suffer from undigested-food diarrhea and diminished appetite, heaviness of the body and oppressive vexation, intestinal rumbling and distension of the abdomen and flanks; above, this corresponds to the Year Star [Jupiter]. In severe cases there is absent-mindedness and irascibility, dizziness and clouding of vision, and disease at the vertex; the transforming qi fails to govern, while the generating qi rules alone; clouds and objects fly and stir, grasses and trees are unsettled, and in extreme cases they are shaken down and shed; conversely there is pain in the flanks with severe vomiting. If the Chongyang pulse is cut off, death ensues and cannot be treated; above, this corresponds to the Great White Star [Venus]. When fire is in excess, blazing summer-heat circulates prevalently, and the lung, governed by metal, receives the pathogenic influence. People suffer from malarial disorders, shortness of breath, coughing and panting, overflow and discharge of blood pouring downward, dryness of the throat and deafness, heat in the center of the body and heat in the shoulders and back; above, this corresponds to the Sparkling Deluder Star [Mars]. In severe cases there is pain in the chest, distension and pain in the flanks, pain between the chest, back, and shoulder blades, pain in the inner aspect of both arms, generalized heat and bone pain, and this develops into spreading sores. The gathering qi of autumn fails to move, while the growing qi of summer alone is manifest; rain, frost, and cold appear; above, this corresponds to the Hour Star [Mercury]. When lesser yin or lesser yang preside above, fire scorches and burns, ice and springs dry up, and things are parched and withered; the disease turns instead to delirious raving and manic excess, coughing and panting with wheezing sounds, and below, severe unremitting overflow and discharge of blood. If the Taiyuan pulse is cut off, death ensues and cannot be treated; above, this corresponds to the Sparkling Deluder Star. When earth is in excess, rain and dampness circulate prevalently, and the kidney, governed by water, receives the pathogenic influence. People suffer from abdominal pain, cold reversal of the limbs and despondency of mind, heaviness of the body and oppressive vexation; above, this corresponds to the Quelling Star [Saturn]. In severe cases there is wasting of the flesh, weakness of the feet that cannot be controlled, a tendency to spasms while walking, pain in the soles of the feet, fluid retention giving rise to fullness in the center and diminished appetite, and the four limbs cannot be raised. When the mutation arises and gains its position, the qi of the other viscera is suppressed, and the transforming qi alone governs; springs gush forth and rivers overflow, and dried-up marshes give rise to fish; wind and rain arrive in great force, the earth crumbles and collapses, and scaled creatures appear on dry land. The disease is abdominal fullness, sloppy diarrhea, and intestinal rumbling; conversely, if the downward flux is severe and the Taixi pulse is cut off, death ensues and cannot be treated; above, this corresponds to the Year Star. When metal is in excess, dryness qi circulates prevalently, and the liver, governed by wood, receives the pathogenic influence. People suffer from pain below both flanks and in the lesser abdomen, redness and pain of the eyes, ulceration of the canthi, and deafness. When the stern, killing qi is severe, there is heaviness of the body and oppressive vexation, chest pain radiating to the back, and fullness of both flanks with pain radiating to the lesser abdomen; above, this corresponds to the Great White Star. In severe cases there is panting, coughing, and counterflow qi, pain in the shoulders and back, and disease throughout the buttocks, genitals, thighs, knees, hips, calves, shins, and feet; above, this corresponds to the Sparkling Deluder Star. The gathering qi becomes severe, the generating qi is pressed downward, grasses and trees contract, and their green foliage withers and falls; the disease instead turns to sudden severe pain, such that one cannot turn from side to side because of pain in the ribs and flanks, coughing and counterflow become severe with overflow of blood. If the Taichong pulse is cut off, death ensues and cannot be treated; above, this corresponds to the Great White Star. When water is in excess, cold qi circulates prevalently, and the pathogenic influence harms the heart, governed by fire. People suffer from generalized heat, vexation of the heart, restlessness and palpitation, yin reversal with cold above, below, and in the center, delirious raving and heart pain; cold qi arrives early; above, this corresponds to the Hour Star. In severe cases there is abdominal distension and swelling of the shins, panting and coughing with profuse sweating and aversion to wind; heavy rains arrive, and dust and fog lie thick and murky; above, this corresponds to the Quelling Star. When greater yang presides above, rain, ice, snow, and frost descend out of season, and damp qi transforms living things; the disease instead turns to abdominal fullness, intestinal rumbling, and sloppy diarrhea, undigested food, thirst with delirious dizziness. If the Shenmen pulse is cut off, death ensues and cannot be treated; above, this corresponds to the Sparkling Deluder and Hour Stars.

Huangdi said: Good. What of when they are deficient? Qibo said: How thorough is this question! When wood is deficient, dryness then prevails greatly; the generating qi fails to respond, and grasses and trees flourish late. When the stern, killing qi is severe, hard timber splits and cracks, and all vegetation withers and turns dry and green-brown; above, this corresponds to the Great White Star. People suffer coldness in the center, pain in the ribs and flanks and in the lesser abdomen, intestinal rumbling and sloppy diarrhea; cool rains arrive in season; above, this corresponds to the Great White Star; its grain is the green one. When yang brightness presides above, the generating qi loses its governance, grasses and trees flourish a second time, and the transforming qi becomes urgent; above, this corresponds to the Great White and Quelling Stars; its ruling grain is the green one, maturing early. When the retaliatory qi arrives, blazing summer-heat and flowing fire appear, the nature of dampness becomes dry, soft and brittle grasses and trees become scorched and withered, their lower parts regrow, and flowers and fruit ripen together; the disease is cold and heat, sores and ulcers, heat rashes and papules, and carbuncles and boils; above, this corresponds to the Sparkling Deluder and Great White Stars; its grain is the white and hard one. White dew descends early, the gathering and killing qi moves, cold rain harms living things, insects devour the sweet-yellow crops, and the spleen, governed by earth, receives the pathogenic influence; the red qi transforms belatedly, and the heart qi governs late; wood above overcomes the lung, governed by metal, and the white qi is thereby subdued, so its grain fails to ripen; there is coughing and nasal congestion; above, this corresponds to the Sparkling Deluder and Great White Stars. When fire is deficient, cold then prevails greatly; the governance of growth is not exercised, so that living things flourish above but congeal below; when the bleakness is severe, yang qi fails to transform, and this cuts short flourishing and beauty; above, this corresponds to the Hour Star. People suffer pain in the chest, distension and pain in both flanks, pain between the chest, back, and shoulder blades and in the inner aspect of both arms, oppressive dizziness and clouded confusion, heart pain and sudden loss of voice, distension of the chest, abdomen, and flanks pulling downward with the lower back so that they ache together; in severe cases one cannot straighten after bending, and the hip and thigh feel as if separated; above, this corresponds to the Sparkling Deluder and Hour Stars; its grain is the red one. When the retaliatory qi arrives, dust hangs oppressive and heavy rains also come, and black qi is thereby debased; the disease is duck-dropping diarrhea and abdominal fullness, inability to take in food or drink, cold in the center with intestinal rumbling, pouring diarrhea and abdominal pain, sudden cramping and wilting numbness such that the feet cannot bear the body; above, this corresponds to the Quelling and Hour Stars; the black grain fails to ripen. When earth is deficient, wind then prevails greatly; the transforming qi fails to issue its command, so grasses and trees grow lush and flourishing; when the tossing and blowing is severe, they blossom but do not bear fruit; above, this corresponds to the Year Star. People suffer from undigested-food diarrhea and sudden turmoil disorders, heaviness of the body and abdominal pain, shaking and twitching of the sinews and bones, twitching and soreness of the flesh, and a tendency to anger; the yearly qi takes charge, hibernating creatures burrow in early, and all suffer from cold in the center; above, this corresponds to the Year Star and the Quelling Star; its grain is the yellow one. When the retaliatory qi arrives, the governance of gathering becomes severe and stern, and prized trees wither in their green; there is sudden pain in the chest and flanks pulling down to the lesser abdomen, with frequent sighing; insects devour the sweet-yellow crops, and that qi lodges in the spleen, so the yellow grain diminishes; people eat little and lose their sense of taste, and the green grain is also damaged; above, this corresponds to the Great White and Year Stars. When reverting yin presides above, flowing water does not freeze, hibernating creatures come out and appear, the storing qi is not exercised, and the white metal qi does not return to dominance; above, this corresponds to the Year Star, and the people are thereby healthy. When metal is deficient, blazing fire then moves; the generating qi is thereby exercised, and the growing qi alone predominates, so the multitude of things flourish, while scorching dryness also moves; above, this corresponds to the Sparkling Deluder Star. People suffer from heaviness and dizziness of the shoulders and back, nasal congestion and sneezing, and bloody stool pouring down; the gathering qi arrives late; above, this corresponds to the Great White Star; its grain is the hard, bearded one. When the retaliatory qi arrives, cold rain suddenly comes, and ice, hail, frost, and snow fall, killing living things; yin reversal then repels yang, which instead flows upward, causing pain at the Brain's Door, extending to the fontanelle and vertex with fever; above, this corresponds to the Hour Star; the red grain fails to ripen; people suffer mouth sores, and in severe cases, heart pain. When water is deficient, dampness then prevails greatly; the growing qi is instead exercised, and its transformation becomes rapid; summer-heat and rain arrive repeatedly; above, this corresponds to the Quelling Star. People suffer from abdominal fullness and heaviness of the body, watery diarrhea, cold sores that weep fluid, onset of pain in the lower back and thighs, difficulty moving the popliteal fossa, calves, thighs, and knees, oppressive vexation, wilting weakness of the feet and cold reversal, pain in the soles of the feet, and in severe cases swelling of the instep; the storing qi does not govern properly, and the kidney qi is unbalanced; above, this corresponds to the Hour Star; its grain is the black millet. When greater yin presides above, then great cold repeatedly arises, hibernating creatures store away early, the ground accumulates hard ice, and the light of yang fails to govern; people suffer from cold ailments in the lower body, and in severe cases abdominal fullness and floating swelling; above, this corresponds to the Quelling Star; its ruling grain is the yellow one. When the retaliatory qi arrives, great winds burst forth suddenly, grasses are bent flat and trees shed their leaves, growth is no longer fresh, the complexion changes from time to time, sinews and bones both become bent and crooked, the flesh twitches and quivers, the vision becomes dim and blurred, things become sparse and cracked, papules break out on the flesh, qi collects in the diaphragm region, and there is pain in the heart and abdomen; the yellow qi is thereby damaged, and its grain fails to mature; above, this corresponds to the Year Star.

Huangdi said: Good. I wish to hear about their seasons. Qibo said: How thorough is this question! When wood is deficient, if spring has the transformation of whistling branches and rhythmic ease, then autumn will have the governance of mist, dew, and clear coolness. If spring has the domination of bleak desolation and destructive harm, then summer will have the retaliation of blazing heat and scorching fire. Its calamity is in the east, its viscus is the liver, its disease internally lodges in the ribs and flanks, and externally is in the joints. When fire is deficient, if summer has the transformation of brightness and radiant splendor, then winter will have the governance of severe sternness, frost, and cold. If summer has the domination of bleak desolation, congealing and biting cold, then at unseasonable times there will be the retaliation of murky dust and heavy rain. Its calamity is in the south, its viscus is the heart, its disease internally lodges in the chest and flanks, and externally is in the channels and vessels. When earth is deficient, if the four cardinal-adjacent directions have the transformation of dusty clouds and moistening dampness, then spring will have the governance of whistling branches and bursting-open buds. If the four cardinal-adjacent directions give rise to the mutation of shaking, breaking, and whirling turbulence, then autumn will have the retaliation of stern killing and prolonged drenching rain. Its calamity is in the four cardinal-adjacent directions, its viscus is the spleen, its disease internally lodges in the heart and abdomen, and externally is in the flesh and four limbs. When metal is deficient, if summer has the command of radiant brightness and stifling steaminess, then winter will have the response of severe congealing cold and stern order. If summer has the mutation of scorching, blazing fire, then autumn will have the retaliation of ice, hail, frost, and snow. Its calamity is in the west, its viscus is the lung, its disease internally lodges in the chest, flanks, shoulders, and back, and externally is in the skin and body hair. When water is deficient, if the four cardinal-adjacent directions have the transformation of rushing moisture and dusty clouds, then at unseasonable times there will be the response of mild wind and generative growth. If the four cardinal-adjacent directions give rise to the mutation of murky dust and sudden downpour, then at unseasonable times there will be the retaliation of whirling turbulence and shaking, breaking winds. Its calamity is in the north, its viscus is the kidney, its disease internally lodges in the lower back, spine, bones, and marrow, and externally is in the valleys of the flesh and the calves and knees. Now the governance of the five movements is like a steelyard balance: what is high is pressed down, what is low is raised up; what transforms is met with response, what mutates is met with retaliation. This is the principle of generation, growth, transformation, ripening, gathering, and storing — the constancy of qi. When this constancy is lost, heaven and earth become blocked on all four sides. Hence it is said: the motion and stillness of heaven and earth are governed by spirit-brightness as their guiding thread; the going and returning of yin and yang are made manifest in their portents by cold and heat — this is what is meant.

Huangdi said: What you, Master, have said of the mutations of the five qi and their correspondence to the four seasons may be called thorough indeed. But when the movement of qi becomes disordered, arising upon chance encounter, breaking out without regular timing, and calamity suddenly converges — how can one anticipate this? Qibo said: Now the movement and mutation of qi is indeed not constantly present, and its virtue, transformation, governance, command, calamity, and mutation each have their own distinct signs. Huangdi said: What does this mean? Qibo said: The east generates wind, wind generates wood; its virtue is to spread harmony, its transformation is to generate flourishing growth, its governance is to loosen and open, its command is wind, its mutation is shaking and bursting-forth, and its calamity is scattering and shedding. The south generates heat, heat generates fire; its virtue is to make manifest and display, its transformation is to make luxuriant and lush, its governance is to brighten and shine, its command is heat, its mutation is melting and scorching, and its calamity is burning and consuming. The center generates dampness, dampness generates earth; its virtue is to steam with moisture, its transformation is to complete abundantly, its governance is to settle and quiet, its command is dampness, its mutation is sudden downpour, and its calamity is prolonged rain and collapse. The west generates dryness, dryness generates metal; its virtue is to clear and cleanse, its transformation is to tighten and contract, its governance is to be firm and incisive, its command is dryness, its mutation is stern killing, and its calamity is the shedding of green foliage. The north generates cold, cold generates water; its virtue is bleak chill, its transformation is clear stillness, its governance is congealing sternness, its command is cold, its mutation is biting severity, and its calamity is ice, snow, frost, and hail. Therefore, in observing its movements, there is virtue and there is transformation, there is governance and there is command, there is mutation and there is calamity; living things follow from these, and man responds to them.

Huangdi said: You, Master, have spoken of the yearly signs — their deficiency and excess — corresponding above to the five planets. Now as for virtue, transformation, governance, command, calamity, and change, these occur when not constant; when they move suddenly, do these too bring about mutation in the stars? Qibo said: The stars proceed by carrying forward the mandate of heaven, and therefore have no reckless movement — there is nothing that goes without response. What moves suddenly is a mutation in the exchange of qi, and to this the stars do not respond. Hence it is said: they respond to the constant but do not respond to the sudden — this is what is meant. Huangdi said: How do they respond? Qibo said: Each follows its own transformation of qi. Huangdi said: What of the slowness or swiftness, the counterflow or compliant motion, of their movement? Qibo said: When a planet lingers long upon its path, moving contrary and staying fixed while small, this is called 'inspecting what is below.' When it departs along its path, departs and swiftly returns, or curves and passes beyond, this is called 'inspecting an oversight or transgression.' When it lingers long and circles about, now separating, now drawing close, this is called 'deliberating over calamity and virtue.' When the response is near, the star appears small; when the response is distant, it appears large. When it is radiant and larger than usual by half again, its transformation is severe; when it is larger than usual by twice, its calamity is imminent. When it is smaller than usual by half, its transformation diminishes; when it is smaller than usual by twice, this is called 'looking down and inspecting,' scrutinizing the transgressions and virtues of what lies below. Where there is virtue, it brings blessing; where there is transgression, it metes out chastisement. Hence, as for the appearance of these images: when high and distant, the star appears small; when low and near, it appears large. Therefore when large, joy and anger are close at hand; when small, fortune and misfortune are distant. When the yearly movement is in excess, then the corresponding star strays northward beyond its course; when the movement and qi are in mutual accord, then each proceeds along its proper path. Thus when the yearly movement is in excess, the star that is feared loses its normal color and takes on that of its mother; when it is deficient, its color takes on that of what it cannot overcome. For the resembling signs, one must be watchful and alert, for none can know their subtlety; anxiously must one attend to what is fitting — who can judge which is auspicious? Reckless movement without proof serves only to display an ominous warning to lords and kings. Huangdi said: How does the response to calamity manifest? Qibo said: This too follows each star's transformation. Thus in the arrival of the season there is flourishing and decline; in encroachment and violation there is counterflow and compliance; in lingering and staying there is more and less; in the appearance of forms there is good and ill; among the lodges there is dominance and subordination; and in the verifying responses there is fortune and misfortune. Huangdi said: What is meant by 'good and ill'? Qibo said: There is joy and there is anger, there is grief and there is mourning, there is moistness and there is dryness — these are the constants of the celestial images, and one must carefully observe them. Huangdi said: Do these six differ according to whether the star is high or low? Qibo said: Though the image appears high or low, its response is one and the same; therefore man likewise responds to it.

Huangdi said: Good. What of the motion, stillness, diminishment, and increase of virtue, transformation, governance, and command? Qibo said: Now virtue, transformation, governance, command, calamity, and mutation cannot be added one upon another. Domination and retaliation, flourishing and decline, cannot exceed one another in degree. Going and coming, smallness and largeness, cannot surpass one another. Their function of rising and descending, they cannot be without one another. Each simply follows its own movement and then returns to balance. Huangdi said: How does disease arise from this? Qibo said: Virtue and transformation are the auspicious signs of qi; governance and command are the manifest patterns of qi; mutation and change are the guiding thread of retaliation; calamity and misfortune are the beginning of harm. When the qi mutually overcome each other in balance, there is harmony; when they fail to overcome each other properly, there is disease; and when one is doubly affected by pathogenic influence, the disease becomes severe. Huangdi said: Good. This may be called a discourse of essential brilliance, the work of a great sage, proclaiming and illuminating the great Dao, penetrating to what is inexhaustible and reaching to what is boundless. I have heard it said: one who speaks well of heaven must find correspondence in man; one who speaks well of antiquity must find verification in the present; one who speaks well of qi must find it made manifest in living things; one who speaks well of correspondence shares in the transformations of heaven and earth; one who speaks well of transformation and mutation penetrates the principles of spirit-brightness. Were it not for you, Master, who could speak of the utmost Dao? Thereupon he selected an auspicious day and stored this discourse in the Chamber of the Numinous, reading it every morning; he named it 'Mutations in the Exchange of Qi,' and dared not open it except after fasting and purification, so carefully was it to be transmitted.