Yin Yang Shiyi Mai Jiujing Yin Yang Shiyi Mai Jiujing The Yin Yang Shiyi Mai Jiujing (), or Cauterization Canon of the Eleven Yin and Yang Vessels, is an ancient Chinese medical text that was excavated in 1973 from a Han-dynasty tomb in Mawangdui Han tombs site (Hunan province) that had been sealed in 168 BCE. It was handcopied in seal script on the same sheet of silk as the "Recipes for Fifty-Two Ailments" and another text on cauterization during the Qin dynasty, around 215 BCE. The text describes the pathways of eleven vessels or channels ("mai" 脉) inside the body, as well as the
Taijitu and called the "River Chart spontaneously generated by Heaven and Earth". By the end of the Ming period, this diagram had become a widespread representation of Chinese cosmology. The dots were introduced in the later Ming period (replacing the droplet-shapes used earlier, in the 16th century) and are encountered more frequently in the Qing period. The dots represent the seed of yin within yang and the seed of yang within yin; the idea that neither can exist without the other. Lai Zhide's design is similar to the "gakyil" ("dga' 'khyil" or "wheel of joy") symbols of Tibetan Buddhism; but while