Yu Ziqing held the book, thinking, Cheng Jing really went all out this time.
This Soul Record is a book from the Earth Pavilion, and it has a long legacy, even the materials used for the book are quite valuable.
Ordinary materials would never have survived until today.
Though the Dharma Methods within aren't very significant for cultivation, Yu Ziqing felt at least the concept was correct; it's just that the correct, suitable, and safe method hadn't been found.
The author of the Soul Record back then used his life to prove it.
Obviously, people at Langya Institute have experimented many times, even powerful figures from the Primordial Spirit Realm have tried and failed.
Otherwise, they wouldn't have given him the original text.
The Zhou Yi arithmetic is a small matter; Langya Academy is quite happy to provide copies to some people, mostly for their commemorative value.
