In the ancient discourse, Dhanvantari, the divine physician, imparted wisdom to Suśruta on the nature of disease and the supreme remedies for disorders of vāta, pitta, and kapha. He emphasized that medicines must be used in proper sequence, tailored to the humors of the body. Dhanvantari explained that diseases arise from four sources: bodily, mental, external, and congenital. Bodily ailments include fever and skin disorders, while mental diseases stem from emotions such as anger. External diseases come from injuries, and congenital conditions manifest as hunger and old age. To destroy bodily and external diseases, he advised offerings of ghee and jaggery on Sundays. He instructed that salted rice-cake with gold should be given to a Brahmin, and on the day of the moon, anoint the Brahmin so that he may be freed from all diseases. On Saturn’s day, oil should be given; on the day of Ashvini, cow’s milk and rice are to be offered. Bathing the image with ghee and milk brings liberation from disease. Further, Dhanvantari counseled that the Gāyatrī mantra should be recited while offering darbha grass soaked in three sweet substances into the fire. One should bathe and make offerings at the place where the disease occurred. For mental pains and afflictions, the praise of Viṣṇu is curative. He then began to expound on the humors—vāta, pitta, kapha—and the bodily tissues. He described the process of digestion: the food eaten and digested in the stomach divides into two parts. One becomes waste, forming excretions such as feces, urine, sweat, and other bodily impurities. The other becomes essence, from which arises rasa, the nutritive fluid; rasa transforms into blood, blood into flesh, flesh into fat, fat into bone, bone into marrow, marrow into semen, semen into passion, and passion into vigor. Region, form, strength, power, time, and nature also follow this succession. Dhanvantari advised that treatment should be administered with an understanding of the potency of medicine. Certain days and constellations are to be avoided: the lunar day called Rikta, Tuesday, and the constellations Mula, Bharani, and Krittika. Before beginning the administration of medicine, one should duly honor Hari, cows, twice-borns, the moon, the sun, and the gods, and listen to the mantra. He invoked the protection of Brahma, Daksha, the Ashvins, Rudra, Indra, Earth, Moon, Sun, Wind, Fire, the sages, medicinal plants, spirits, and guardians, praying that the remedy be as elixirs for the seers, nectar for the gods, and the best medicine for noble serpents. Dhanvantari then described the regions of the earth: a region dominated by wind and phlegm, with many trees and much water, is marshy; the opposite, lacking these, is arid. A region with some trees and water is mixed. The arid region is rich in bile, while the mixed region is balanced. He revealed the qualities of the humors: wind is subtle, cold, and mobile; bile is hot and pungent in three ways; phlegm is stable, sour, unctuous, and sweet, conferring strength. Increase comes from similar qualities, decrease from opposites. Sweet, sour, and salty tastes increase phlegm and diminish wind; pungent, bitter, and astringent tastes are windy and reduce phlegm; pungent, sour, and salty tastes increase bile; bitter, sweet, and astringent tastes destroy bile. These properties are attributed not to taste itself but to the post-digestive effect. Substances with hot potency destroy phlegm and wind; those with cold potency destroy bile. By their inherent power and action, they produce effects. He outlined the seasonal cycles: in winter, spring, and summer, phlegm accumulates, aggravates, and pacifies in due order. In summer, the rainy season, at night, and in autumn, wind follows the same pattern. In the rainy season, autumn, and early winter, bile accumulates, aggravates, and pacifies. The seasons beginning with the rains are of the nature of release, as are those beginning with early winter; the three beginning with late winter and ending with summer are of the nature of absorption. The moon’s influence is releasing, the sun’s is absorbing. The moon, moving through the three seasons beginning with the rains, generates the tastes in turn: sour, salty, and sweet. The sun, moving through the seasons beginning with late winter, produces the tastes in turn. One should gradually increase bitter, astringent, and pungent tastes as the humors grow, for only one strength increases. As the humors diminish in humans, they decrease gradually, along with the nights, days, and age. At the beginning, middle, and end, kapha, pitta, and vāyu become aggravated; their increase occurs at the start of their agitation. The time after their aggravation is called remission, described for them due to overeating or not eating. All diseases arise from the suppression or forceful release of urges. One should fill two parts of the stomach with food, one part with drink, and leave space for vāyu and the other humors. For the cause of disease, the remedy should be contrary. Dhanvantari declared the essence: above and below the navel, at the anus and hips, lie the locations of strength, blood, pitta, and vāyu in the body. Yet all these humors are pervasive throughout the body, especially vāyu. He taught that the heart, at the center of the body, is the seat of the mind. One who is thin, has little hair, is restless, talks much, and has irregular digestion is of vāta nature—sky-moving and so in dreams, prematurely gray, irritable, prone to sweating, and fond of sweet things. In dreams, one who sees radiant things is of pitta nature; tamasic, rajasic, and sattvic types are also remembered thus. One who sees clear clouds in dreams is of kapha nature; tamasic, rajasic, and sattvic types are likewise remembered. Thus, Dhanvantari revealed the intricate wisdom of the humors, the cycles of nature, the proper administration of medicine, and the subtle signs by which the constitution of each person may be known.