An Illiterate Storyteller: Meng Qinghua Volume 5:

These stories are ancient Chinese legends and stories. All the stories were contained in a thread; we cannot see it, but many people work along this thread, and they do not have any result. This thread was named reincarnation. The connotation of the story can be summed up as a word: good people leave good stories, and good stories can give people good belief.