Nature never taught me that there exists a God of glory and of infinite majesty. I had to learn that in other ways. But nature gave the word glory a meaning for me. I still do not know where else I could have found one. I do not see how the ‘fear’ of God could have ever meant anything to me but the lowest prudential efforts to be safe, if I had never seen certain ominous ravines and unapproachable crags. And if nature had never awakened certain longings in me, huge areas of what I can now mean by the ‘love’ of God would never, so far as I can see, have existed.
Of course the fact that a Christian can so use nature is not even the beginning of a proof that Christianity is true. Those suffering from Dark Gods can equally use her (I suppose) for their creed. That is precisely the point. Nature does not teach. A true philosophy may sometimes validate an experience of nature; an experience of nature cannot validate a philosophy. Nature will not verify any theological or metaphysical proposition […]; she will help to show what it means.
—C. S. Lewis, in The Four Loves