A classic guide to expanding perception and consciousness development. In this highly acclaimed classic, psychedelic elder Ralph Metzner presents a guide to six ancient systems, once known only to the initiated few, to expand awareness and free your consciousness from exterior limitations and cultural conditioning. Metzner begins with the I Ching, revered by the Chinese as the oldest and wisest book in the world. He explains how it reveals change as the evolutionary constant and offers a hands-on method of divination and guidance. He explores the Hindu and Buddhist Tantras of medieval...