Draws on a broad range of scientific evidence to theorize an evolutionary basis for religion, considering how religion may have served as an essential component of early society survival and that the brain may be inherently inclined toward religious behavior.

The nature of religion -- The moral instinct -- The evolution of religious behavior -- Music, dance and trance -- Ancestral religion -- The transformation -- The tree of religion -- Morality, trust and trade -- The ecology of religion -- Religion and warfare -- Religion and nation -- The future of religion.