素问·阳明脉解 Explanation of the Yang Brightness Vessel
黄帝问曰：足阳明之脉，病，恶人与火，闻木音则惕然而惊，钟鼓不为动，闻木音而惊，何也，愿闻其故。歧伯对曰：阳明者胃脉也，胃者，土也，故闻木音而惊者，土恶木也。帝曰：善。其恶火，何也。歧伯曰：阳明主肉，其脉血气盛，邪客之则热，热甚则恶火。帝曰：其恶人何也。歧伯曰：阳明厥则喘而惋，惋则恶人。帝曰：或喘而死者，或喘而生者，何也。歧伯曰：厥逆连藏则死，连经则生。
帝曰：善。病甚则弃衣而走，登高而歌，或至不食数日，逾垣上屋，所上之处，皆非其素所能也，病反能者何也。歧伯曰：四支者，诸阳之本也，阳盛则四支实，实则能登高也。帝曰：其弃衣而走者，何也。歧伯曰：热盛于身，故弃衣欲走也。帝曰：其妄言骂詈不避亲踈而歌者，何也。歧伯曰：阳盛则使人妄言骂詈不避亲踈，而不欲食，不欲食，故妄走也。
Huangdi asked: When the vessel of the Foot Yang Brightness is diseased, the patient comes to dislike people and fire, and startles in alarm on hearing the sound of wood struck, while the sound of bells and drums does not move him — why does the sound of wood alone startle him? I wish to hear the reason for this. Qibo replied: Yang Brightness is the vessel of the stomach, and the stomach belongs to earth; hence one who startles at the sound of wood does so because earth abhors wood. Huangdi said: Good. Why does he come to dislike fire? Qibo said: Yang Brightness governs the flesh, and its vessel is abundant in blood and qi; when evil qi lodges within it, heat results, and when the heat grows severe, the patient comes to dislike fire. Huangdi said: Why does he come to dislike people? Qibo said: When Yang Brightness suffers reversal, the patient pants and feels oppressed at heart; feeling oppressed at heart, he comes to dislike people. Huangdi said: In some cases the panting patient dies, in others the panting patient lives — why is this? Qibo said: When the reversed, counterflowing qi implicates the viscera, the patient dies; when it merely implicates the channels, the patient lives.
Huangdi said: Good. When the disease grows severe, the patient casts off his clothes and runs about, climbs to high places and sings, or goes for several days without eating, scaling walls and climbing onto roofs — reaching places that, in health, would be entirely beyond his ability. Why is it that in disease he is able to do what he ordinarily cannot? Qibo said: The four limbs are the root of all the yang; when yang is exuberant, the four limbs become replete, and being replete, the patient is able to climb to high places. Huangdi said: Why does he cast off his clothes and run about? Qibo said: Heat is exuberant throughout the body, and so he casts off his clothes and wishes to run. Huangdi said: Why does he rave, curse, and revile without regard for kin or stranger, all the while singing? Qibo said: When yang is exuberant, it causes a person to rave, curse, and revile without regard for kin or stranger, and to have no desire to eat; having no desire to eat, he runs about wildly.