There are rumors in the world that the cultivation methods for qi practitioners are roughly four types, which are reading books, passing qi, exhaling and taking medicine, among them, the qi obtained from reading books is essence The purest, which can be called Haoran qi, is closest to the innate qi. Qi, while Fudan has the most impurities and the biggest problems. However, this is only a method that ordinary energy practitioners can come into contact with. Actually, there is another method to practice qi.