"Xuanyuan Benji": "The emperor went hunting eastward to the sea, climbed Huan Mountain, and found mythical beasts on the seashore. They were able to speak and express the emotions of things. Because he asked about the ghosts and gods in the world, since ancient times, there are 1,520 kinds of spirits that are things and wandering souls that change. Bai Ze said that the Yellow Emperor had people write pictures to show the world."
Purpose: Daily entertainment and stress relief