Religious and spiritual experiences (RSEs) are a puzzle. Some receive them gratefully as reliable ways to discover the deepest truths about reality. Others approach them as misleading side effects of the human brain\u27s processing system. Wildman (Boston Univ.) provides readers with a sophisticated program to assess the value of RSEs. His discussion of the importance of recent research into the correlation of RSEs and the brain is noteworthy. He describes a wide range of these experiences, both common and uncommon, and offers a fresh classification of them grounded in their neurological and phenomenological characteristics. Focusing primarily on intense experiences, he argues that their cognitive reliability is vastly increased when combin...