Ken Wilber is a national treasure. No one is working at the integration of Eastern and Western wisdom literature with such depth or breadth of mind and heart as he. -Robert Kegan, Professor of Education, Harvard University Graduate School of Education, and author of In Over Our Heads

When Ken Wilber's thought walks through your mind, the door to the next higher level becomes visible. Anyone seeking to update the wisdom traditions of their lineage needs his reality and consciousness maps. The kabbalah of the future will lean on Ken's work. -Reb Zalman Schachter-Shalomi

Ken Wilber is today's greatest philosopher and both critic and friend to authentic religion, a true postmodern Thomas Aquinas. -Father Richard Rohr, Center for Action and Contemplation

The religion of tomorrow, according to Ken Wilber, will not be one religion, but all religions guiding their respective constituents toward oneness with Ultimate Reality. This book is Ken Wilber's comprehensive synthesis of all the elements that make for human development from the Big Bang through the course of material and biological evolution. The recent discoveries of science, especially in the areas of developmental psychology and historical criticism, as well as mystical experience, have enabled him to bring together contemporary science, the wisdom of the world religions, and an integral presentation of the human condition with all its potential. The endless complexities of the evolutionary process gives way to a sublime simplicity, culminating in the spiritual and integral evolution of the human person toward unity with That Which Is.-Thomas Keating, author of Open Mind, Open Heart