On Narnia and C.S. Lewis's use of "magic"

"This is the true picture of magic in Narnia, and its magic is mirrored in our own world. Conflicts of power and enchantments are real, and they matter. But beneath the power encounters and magical warfare is Deep Magic and Deeper, the inflexible solidity of the Moral Law and the breathtaking beauty of Sacrificial Love. Lewis reminds us that substitution is a kind of magic, a mysterious and supernatural force that transforms the world, overcoming every form of treachery. In Narnia, as in our world, Deeper Magic triumphs over Deep Magic. Through sacrifice, Mercy triumphs over Judgment." - Live Like a Narnian: Christian Discipleship in Lewis's Chronicles by Joe Rigney