With the release of the movie "The Chronicles of Narnia: The Lion, The Witch, and The Wardrobe", many people are being introduced or reintroduced to C.S. Lewis. I have only read one of his books, "The Great Divorce", and then have only scratched the surface in terms of understanding it.
The Most Reverend Charles J. Chaput, O.F.M. Cap., the Archbishop of Denver, CO, uses the occasion to refer to an essay written by Lewis as a point of departure and asks how we are keeping the season of Advent, as we are halfway through it.
The article is here.