I read this book because C.S. Lewis, in his Surprised by Joy credits it with starting him on his journey back from atheism.

The point of the story, as I understand it, is that it is better to have loved than to have been loved. Perhaps, although a fair measure of both would seem to be better yet. The story of a man's wanderings through fairyland was occasionally interesting, but not often. Mostly it just seemed goofy.

If you can read some deep theological meaning in it, please tell me what it is.