In The Great Divorce, Lewis sees everything in heaven (grass, rocks, trees, water, etc.) as “much solider than things in our country.” It’s all heavy and hard, like diamonds—the character can’t pluck a flower or pick up a leaf.

Nanci and I leave today for 12 days in Oxford and Cambridge where I'm teaching at the Oxbridge C. S. Lewis conference. I teach two seminars, one at Oxford and one at Cambridge, that are two afternoons each, plus a plenary session at Cambridge.

Question from a reader: You quote from C.S. Lewis in your books often. I like Lewis too, but now I'm hearing that he's not biblical. I recently watched an online video that said he was a universalist. What do you think?