The recipe of Qingwei Dan is written by an unknown person. Judging from the content and words, it should be written by Qing Wei Taoist in Yuan Dynasty. A roll. Income "orthodox Taoist scriptures" cave is really a variety of techniques. This book is clear about the practice of inner alchemy. It is divided into four chapters, that is, the chapter of pure and subtle truth, the chapter of entering the room, the chapter of summoning the altar, and the chapter of use. At the end, seven kinds of internal refining symbols are attached. The characteristic of Qingwei Paidan method is the combination of internal alchemy and external symbol method. Although the inner alchemy training program is divided into three stages: refining into qi, refining into spirit and refining into spirit, the specific achievement method is different from the Quanzhen Daodan method. It is also said that the essence of Qingwei Daoism is "not to be expert in symbols, not to be muddy in spells", but to combine my righteousness with thunder first, and to use it with the struggle between heaven and my body. "I am grateful to Yin and Yang, and when I come out, I will bomb Skyquake." It is also called "the symbol of virtue is the foundation of law", and the doer of the road must be sincere and sincere before he can practice law.