For anyone who has never read the books, I highly recommend that you do. It will be well worth your time investment. If you've read them before, maybe as a child, I would recommend you read them again. The main reason I brought it up is a quote I want to share from the end of Williams' book, a thought provoking question:
"Unlike the Narnians, who can see, hear, and touch Aslan, we no longer have Jesus in tangible form. But in these stories Lewis shows us the first step in learning to love Christ. We can see the boundless scope of his love in his gifts. Thay's why Narnia is filled with the delights of creation. Everything God made is for our delight and joy. In the Chronicles Lewis holds this truth up to our face so we can't possibly miss it. Rather than asking the tired old question, "Why is there so much evil in the world?" Narnia forces us to answer another question: "Why is there so much good in the world?" We can account for evil in the fact of our free will and the fall. But if there is no God, how can we account for all the beauty, wonder, love, joy, and delight in the world?"