According to the author, or, as he calls himself, the “translator” of this book, he was “really lucky” - because in the implementation of this incredibly difficult project he was helped by the best expert in the art of Tai Chi Chuan in the whole world. “Somehow.” I asked Lien why none of the Chinese or his former students had undertaken to translate the book written by Zhen Gong before me (which is especially surprising considering the staggering wealth of knowledge contained in it). - They... don’t know Taijiquan enough to understand in very intricate theories about internal energy, and added that now I am encroaching on the last of the secrets of his art." Here is a work that can shed light of clarity on a subject that is too often shrouded in a veil of mystery and mystification. Borrowed from Tai Chi for many years, Quan idea of internal energy borders on mysticism. Indeed, at higher stages of mastery this may be plausible; but in general, the art of taijiquan is accessible to almost everyone, provided that it is practiced correctly and persistently, learning from famous, experienced teachers.