Somewhere in every human mind there are patterns so ancient, so deeply embedded, that no individual life placed them there. A child who has never read mythology creates stories with heroes, monsters, and wise old guides. A person who has never studied religion dreams of death and rebirth. A culture with no contact with any other produces gods, tricksters, and great mothers that are structurally identical to the gods, tricksters, and great mothers of civilizations on the other side of the planet. These patterns are not learned. They are inherited. They are the psychological sediment of millions of years of...