" God 4.0' is a stunning tour de force of erudition, deftly summarizing forty thousand years of the human search for spiritual transcendence – via the painted caves of the Ice Age shamans, the Neolithic megaliths and Mesopotamian ziggurats, and the soaring Medieval cathedrals and mosques. The second half of the book turns inward to describe the structures and processes of the human brain that foster transcendence, and the factors that interfere with it. Robert and Sally Ornstein make an ideal team for this collaboration, Sally a painter and publisher of children’s books, and Robert a psychologist and neuroscientist. The result is a brilliant guided expedition through reams of archeological and neurological research, with the authors highlighting in easily understood language the important discoveries and developments in our perennial quest for meaning and purpose. — Lisa Alther, novelist and author of four New York Times best sellers "

― Robert Ornstein , God 4.0: On the Nature of Higher Consciousness and the Experience Called “God”