"A universe that contains much that is obviously bad and apparently meaningless, but containing creatures like ourselves who know that it is bad and meaningless." 

(pg 42)

The fact that we know the world is meaningless reveals that there is a God because we know that there is more to life than just a daily routine, of eating and sleeping, there is a God to love!

Lewis, C. S. Mere Christianity: A Revised and Amplified Edition, with a New Introduction, of the Three Books, Broadcast Talks, Christian Behaviour, and Beyond Personality. San Francisco: HarperSanFrancisco, 2001. Print.