If you master these eighteen secrets, you can go in and out freely and keep them freely. If the purpose is to get rid of diseases, strengthen the body and prolong life, it is enough to master these contents. If you master these methods, all kinds of diseases will naturally be fine. If you want to further inquire about the olympiad, this book "eighteen secrets of closed doors" will also go up the stairs. It is not only the foundation, but also an essential element to accompany your future practice. I hope that these eighteen secrets of closing doors can play a role in eliminating diseases, strengthening the body, prolonging life and further exploring the mysteries of the human body.
Special physician ancestor