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The *Yangming Maijie Pian* (Chapter on the Explanation of the Yangming Pulse) states: When the Foot-Yangming meridian is diseased, the patient dislikes people and fire, and is startled by the sound of wood. (This is because stomach heat is internally constrained, hence the aversion to people and fire. The Stomach belongs to Earth in the Five Elements, hence the startle upon hearing the sound of Wood.) In severe cases, the patient discards their clothes and runs about, climbs high places and sings, or goes without food for several days, leaps over walls and climbs onto roofs. The places they ascend are beyond their usual capabilities. Why can the patient do these things contrary to their normal state? The four limbs are the root of all Yang meridians. When Yang qi is excessive, the four limbs become solid and strong, and thus the ability to climb high is achieved. (Yang qi receives its nourishment from the four limbs, therefore the four limbs are the root of all Yang.) Heat is excessive in the body, hence the desire to discard clothes and run. Excessive Yang causes one to speak wildly, curse others, disregarding kinship or distance, and due to the lack of desire to eat, one wanders aimlessly. (Explaining why stomach disease manifests as climbing high and singing, discarding clothes and running, speaking wildly and cursing, it is all due to the excess of pathogenic factors. Excess pathogens lead to excessive heat; excessive heat leads to hyperactive Yang; the three aforementioned syndromes all originate from this.)

The *Ping Rebing Lun* (Chapter on Evaluating Heat Diseases) states: There is a type of warm disease where sweating is followed immediately by recurrent fever, the pulse is rapid and restless, does not diminish with sweating, accompanied by delirious speech and inability to eat. What is the name of this disease? Qibo replied: This disease is named "Yin-Jiao" (Yin-Yang Intersection). "Jiao" signifies death. (Intersection refers to the mingling of Yin and Yang Qi, which no longer remain distinct.) The reason humans sweat is that it originates from grain (food), and grain essence generates Jing (Essence). (Meaning that Grain Qi transforms into Essence; when Essence is sufficient, it becomes sweat.) Now, when pathogens contend with healthy Qi in the muscles and bones, if sweating occurs, it indicates that the pathogen is retreating and Essence is victorious. (Referring to the initial sweating.) If Essence is victorious, the patient should be able to eat and the fever should not recur. Recurrent fever indicates the presence of pathogens. Sweat is derived from Essence. Now, sweating followed immediately by fever indicates that the pathogen is victorious. The inability to eat means there is no assistance for the Essence. ("Wu bi" means there is nothing to assist or supply; without digestion of grain, Essence is not generated, and without transformed Essence flowing, there is nothing to supply for sweating.) If the disease lingers, life expectancy will collapse instantly. (In such cases, the person's lifespan will immediately face peril.) If the pulse remains rapid and vigorous after sweating, it indicates death. (After sweating, the pulse should be slow and quiet; if it is instead rapid, restless, and full, it indicates exhaustion of True Qi and excess of pathogenic factors, thus predicting certain death.) Now, if the pulse does not correspond with the sweating, it means the healthy Qi cannot overcome the disease, and death is evident. (A pulse that is not quiet but rapid and vigorous does not correspond with the expected post-sweat state.) Delirious speech indicates loss of Zhi (Will/Shen). Loss of Zhi indicates death. (Zhi resides in Essence; now that Essence cannot be supplied, Zhi has no abode. If Zhi does not reside, it is lost.) Currently, three signs of death are seen, and no sign of life is present. Even if there is temporary recovery, death is inevitable. (Sweating with a rapid, vigorous pulse is the first sign of death. Inability of healthy Qi to overcome the disease is the second sign of death. Delirious speech and loss of Zhi is the third sign of death.)