Jade Record describes that after death there was a  "Mirror of Reflection" which was built to help the dead remove any traces of their memories on Earth and then they will be sent to the Earth again living the same lives as they had before.
The Jade Record or Yuli () is an illustrated religious tract that circulated in various versions and editions in the 19th century in China. In the first hall, the "Mirror of Reflection" lets the dead see their own sins. At the end of their passage through hell, the souls are made to forget their previous lives in the goddess Meng's "Tower of Forgetting" and are sent back to the world, reincarnated as animals, poor, ill or ugly humans, or as rich men, depending on their prior behavior. This soup wipes the memory of the person so they can reincarnate into the next life without the burdens of the previous life. According to Chinese mythology, there exist several realms beneath the Earth. It is her task to ensure that souls who are ready to be reincarnated do not remember their previous life or their time in hell. The brew induces instant and permanent amnesia, and all memory of other lives is lost. Having been purged of all previous sins and knowledge, the dead spirit is sent to be reborn in a new earthly incarnation according to the karma accrued over their previous lifetimes, and the cycle begins again. 
