Bruce Kumar Frantzis has written this book as an introduction for martial arts practitioners to the internal arts of Tai Chi, Hsing-I and Ba Gua, which are not usually seen as fighting arts. The book is organized around chapter-by-chapter profiles of Oriental masters who taught Frantzis - including Cheng Man-ch'ing ad Morihei Ueshiba. Frantzis describes the progressive stages of animal to human to spiritual embedded within each martial art, and the bridges practitioners need to cross in order to reach the next level.