It turned out that all living beings in the prehistoric era were the medicine guides in the sage's alchemy furnace, and Jin Chanzi's ten reincarnations turned out to be scripts planned by the sage. The so-called Journey to the West and the Eighty-One Difficulties were originally prepared for Sun Wukong, that is, The script of Jin Chanzi is also written by Sun Wukong; Nezha under the ground that day turned out to be a reincarnation planned for life after life; are the so-called past and present lives really only those in memory, or have they gone through thousands of reincarnations?