My favorite Christmas book is The Donkey’s Dream, which is about the journey Mary and Joseph made to Bethlehem. Meant for young children, Barbara Helen Berger’s story is a brilliant and subtle work of theology. Or perhaps antitheology, as it allows simple images to tell us more than words can convey about what the incarnation signifies. As the donkey ambles and dreams, we see that he is carrying a luminous city, with many gates and towers. Next we see on his back a sailing ship, rocking on the sea like a cradle, and then a flowing fountain, and then a rose. Finally we see what he has been carrying all along—a pregnant woman in a blue robe spotted with stars.