The oft-made claim that The Chronicles of Narnia is an allegory, though partially true, does not quite do justice to the power of the work, or the beautiful, grace-filled, and luminous world Lewis creates. In a work of allegory, as Lewis explains it in The Allegory of Love, characters are visibilia (“visible things”) invented to express or represent certain “immaterial facts” about the world of our experience, such as our passions or states of mind, as we see in Lewis’ own example:
If you are hesitating between an angry retort and a soft answer, you can express your state of mind by inventing a person called Ira with a torch and letting her contend against another invented person called Patientia. This is allegory.
But this, of course, is what we tend not to find in Narnia. Reepicheep, the Beavers, Ramandu, Jewel are not visibilia standing in for certain invisibilia of our world-representing things like Courage, Constancy, or Wisdom-though they may possess such qualities. The creatures of Narnia have a certain (admittedly fictional) integrity of their own that works against reading them as mere stand-ins or simulacra for aspects of our world, even if Lewis has certain didactic aims in their creation.