Early on in a life spent studying the art of storytelling, I came upon an interesting example of narrative power. In his encyclopedic study of mythology, The Masks of God, Joseph Campbell quotes an essay by German ethnologist Leo Frobenius. Frobenius tells of a little girl who plays with three matchsticks, pretending they are Hansel, Gretel and the witch. After a time, she lets out a shriek of terror. When her father asks her what’s the matter, she replies, “Daddy! Daddy! Take the witch away!” In her imagination, the matchstick has become the witch she pretended it was.