I have recently been reading through "Mere Christianity" by C.S. Lewis and have found it to be a delightful book. Although I have hangups with some of Lewis' ideas of free-will and God's providence, I find this to be a wonderful read. To be blunt this man is brilliant, he is able to see truths so clearly and convey them in such a way as to paint a picture for his reader to give illumination to that truth. A portion I found particularly sharp is section where Lewis talks about the irrationality of his former Atheism, he writes:
"My argument against God was that the universe seemed so cruel and unjust. But how had I got this idea of just and unjust? A man does not call a line crooked unless he has some idea of a straight line. What was I comparing this universe with when I called it unjust? If the whole show was bad and senseless from A to Z, so to speak, why did I, who was supposed to be part of the show, find myself in such violent reaction against it? A man feels wet when he falls into water, because man is not a water animal: A fish would not feel wet.
Of course I could have given up my idea of justice by saying it was nothing but a private idea of my own. But if I did that, then my argument against God collapsed too—for the argument depended on saying that the world was really unjust, not simply that it did not happen to please my private fancies. Thus in the very act of trying to prove that God did not exist—in other words, that the whole of reality was senseless—I found I was forced to assume that one part of reality—namely my idea of justice—was full of sense.
Consequently atheism turns out to be too simple. If the whole universe has no meaning, we should never have found out that it has no meaning: Just as, if there were no light in the universe and therefore no creatures with eyes, we should never know it was dark. Dark would be without meaning." (Mere Christianity Book 2 chapter 1)
This is an arresting observation I think for the Atheist. He (the Atheist) wants to argue against existence of God because of the ubiquitous evil is in the world. Yet from where comes the idea that this world is screwed up? This is just simply what is, you can not say what is is wrong in any objective sense from an Atheistic standpoint. Thus, the Atheist really has no footing to bring up the problem of evil to challange the Christian worldview. Also, if the universe simply is and there is no real meaning where do we get the notion of meaning to even announce that the universe has no meaning?
I think this is an absolutely brilliant point which Lewis raises.