The incarnation is by far the most shocking aspect of Christianity. The resurrection of a god is not an unusual feature of mythic traditions around the world: Osiris, Baldr, Quetzalcoatl, and Dionysus all came back from the dead. But the idea that a god, let alone the God, would take on a mortal body and the fullness of our humanity would be an outlandish claim to most people outside the Christian world.