Koans--such as What is the sound of one hand clapping?--have penetrated deeply into popular consciousness. Yet, those who encounter koans in the traditional literature or in the context of exploring Zen practice themselves can often find them utterly baffling. The Flowing Bridge is the first-ever book to address all of the first koans that Zen students encounter in practice--What is Mu? What is the sound of the single hand? and the so-called...