According to 『Dongeuibogam(東醫寶鑑)』, 『the Shinnong Herb Bible(神農本草經)』, 『Chamdonggo(參同攷)』, come to the conclusion about medical thought of 『the Zhouyi Cantongxie(周易參同契)』.
Alchemy is a common field both on the eastern and western civilization, but a process of development is different. Ancient chinese alchemist made a study on external alchemy, but harmful consequences of external alchemy was consecutive, many scholars had turned their interest on internal alchemy which is related in human meridian biology and spirit. In the western alchemy has developed to make a study on analytic psychology and science of religion. Most importantly, the eastern and western alchemy have something in common what at the point of the perfection of self is similar, but the name is different, for example in the eastern alchemy we can be immortals and take a spiritual enlightenment with the elixir of life, in the western we can take a cure of souls as a christian.
As for internal alchemy, 『Cantongxie(參同契)』 gives influence to the theories such as the theory of danjeon(lower part of the abdomen), evolution, aging, and life nurturing. Especially, the theory of danjeon shows such merit for studying since it is similar to triple energizers(三焦) and the theory of qi street(氣街) of oriental medicine.
The study on 『Cantongxie(參同契)』 was achieved in Korea too, especially Chosun dynasty. 『Candongkao(參同攷)』 by Seo Myung-eung(徐命膺, 1716~1787) are representative. According to 『Candongkao(參同攷)』, Geon(乾), Gon(坤), Gam(坎), and Ri(離), the four trigrams for divination, each are affiliated with lungs, spleen, kidneys, and heart.
Nowadays the study on alchemy correspond with modern trends, which are anti-aging and living without any disease. If processed mineral drugs is assured for stability, it can be used for incurable diseases such as cancer.