" This book is the culmination of, the capstone to Robert Ornstein’s brilliant, ground-breaking half century of research into the dimensions, capacities, and purposes of human consciousness. Deeply thoughtful and wide-ranging in scope, his final book goes well beyond the “left-brain, right-brain” work for which he originally became famous, this time bringing the often-confusing and divisive subject of spirituality into a clear and useful 21st-century focus, presenting it as a matter of perception, not belief. Using rigorous, rational, scientific analysis – always his greatest strength – Ornstein shows that the spiritual impulse is innate, a human ability that from the Ice Age forward has been essential to problem solving. As a final part of his legacy, he lays out how this capacity to reach beyond the everyday can, cleared of cobwebs and seen afresh, play a role and be part of preparing humanity to confront today’s staggering global problems. A rewarding and fascinating book. — Tony Hiss, author of Rescuing the Planet: Protecting Half the Land to Heal the Earth "

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