By C.P. Ong. A 5 star book on Amazon, this book diverges from traditional exposition on Taijiquan (Tai Chi Chuan) as it engages rather than shuns the role of muscles in elucidating the cryptic practice dictum of “using YI (mind) and not LI (muscle force).” It centers on the core principle of Taiji balance—the balance of yin and yang, but presents the metaphysics of balance the way the body comprehends it, developmentally, through practice in the musculo-skeletal framework. In the process, the fog of mystique lifts, and the many abstruse concepts of Taijiquan become clear.