I am a fan of Harris because he promotes rationality but avoids the atheistic dogmatism that alienates some of his fellow ‘horsemen of the apocalypse’. Harris does not put the boot into religion in this book, but he does objectively examine purveyors of spirituality and their motives. It often isn’t pretty. Moreover, he says “until we can talk about spirituality in rational terms – acknowledging the validity of self-transcendence – our world will remain shattered by dogmatism”. I would not hesitate to recommend this book to any reader interested in meditation or yoga to improve their lives, and Harris’s peak into the alternative side of psychedelic drugs is a necessary comparison. It would be unfortunate if this necessary part of the discussion was interpreted to be unhealthy or risky.