When I passed the ancient temple, I found a record of "Cai Gen Tan" among the ruined scriptures. Looking at it, although it belongs to Zen Buddhism, it actually has some hidden aspects in the study of body, mind and life. I urgently took it home, redacted it, and revised it into a piece of paper. The old style is orderly, the writing is not elegant and docile, and the book has nothing to do with language, so it is ignored. The author of this book is Hong Yingming, but I don't know who he was.