Deep Listeners"A fascinating thesis and a timely synthesis. . . . Becker urges the reader to view certain arcane cultural rituals as being in the mainstream of spiritual development and argues that the resulting trance like states may relate to the basic fabric of emotions and consciousness, which are our ancestral, animalian heritage. This is both a risky and courageous undertaking that challenges both cultural and neuroscientific studies." Jaak Panksepp, author