The present book is an extensive and systematic study of various philosophical systems. These are Zen, Buddhism, Mahayana Buddhism; the book elaborates the following points, (1) Zen is mysticism. It has all the characterstics of mysticism. Zen is not, God mysticism but it is mysticism of soul. A Mystic turns inwards in search of reality and he analyzes his soul or self which he finds to be a non-self which is true self. So Zen can be appropriately be described as ...