The book presents a comprehensive historical overview of Zen Buddhism, tracing its evolution from Indian foundations and Chinese Taoist influences to its golden age during the Tang dynasty. The author focuses on the lives, teachings, and legendary anecdotes of the primary masters who shaped Zen, starting with Bodhidharma, the Indian monk who introduced intensive meditation to China. Subsequent chapters follow the transmission of the tradition through successive patriarchs and masters, detailing the gradual shift from traditional monastic practices to the iconoclastic, anti-intellectual approaches of the Southern school. The text explores the philosophical synthesis of Buddhism and Taoism, examining how concepts like the Void and the Tao merged into a unified understanding of reality.
Particular attention is given to the ideological conflicts between the gradual enlightenment of the Northern school and the sudden enlightenment championed by masters like Hui-neng and Ma-tsu. The narrative highlights the development of distinctive teaching methods, including shouts, blows, and the irrational dialogue of the koan, designed to bypass rational intellect and provoke direct, intuitive experience. Finally, the account describes the maturation of Zen into independent monastic communities and its resilience following the great suppression of Buddhism, culminating in the establishment of the major sects that carried the tradition forward.