"Baopuzi" summarizes the theories of immortals since the Warring States Period, and has since established the Taoist immortal theory system; it also inherits Wei Boyang's alchemy theory, and integrates the great achievements of alchemy in the Wei and Jin Dynasties; it is also a study of my country's alchemy before the Jin Dynasty Valuable material on the history of Taoism and thought. Taoist theoretical works of the Eastern Jin Dynasty. Written by Ge Hong of the Eastern Jin Dynasty. Ge Hong (284-364), courtesy name Zhichuan, was a scholar and writer in the Jin Dynasty. A native of Jurong, Danyang (now part of Jiangsu). He once served as the director of the Situ King's Directory, and was also recruited as a regular servant of the Sanqi and a great author, but he failed. Later he went to Guangzhou and made alchemy in Luofu Mountain.