Right now, researchers are storming heaven from every direction. In “Extreme States,” we’ll see how things like trance states, out-of-body experiences, and cosmic unity — all core mystical experiences that underpin our spiritual traditions — are now understood as the product of measurable biology. The hard science has been done; the disruptive

written three books exploring what the mystics have said about ultimate reality, long designated by the code name God, which in his view no longer suits us.