For centuries the I Ching has been used as a basic map of conscious development containing the underlying principles of all religions and highly prized by followers of Buddhism. Chih-hsu Ou-i uses the concepts of Tianti Buddhism to elucidate the I Ching concentration and insight calmness and wisdom and various levels of realization. Skillfully translated by Thomas Cleary this work presents the complete text of the I Ching plus the only Buddhist interpretation of the oracle.