War makes death real to us, and that would have been regarded as one of its blessings by most of the great Christians of the past. They thought it good for us to be always aware of our mortality. I am inclined to think they were right. All the animal life in us, all schemes of happiness that centered in this world, were always doomed to a final frustration. In ordinary times only a wise man can realize it. Now the stupidest of us knows. We see unmistakably the sort of universe in which we have all along been living, and must come to terms with it. If we had foolish un-Christian hopes about human culture, they are now shattered. If we thought we were building up a heaven on earth, if we looked for something that would turn the present world from a place of pilgrimage into a permanent city satisfying the soul of man, we are disillusioned, and not a moment too soon. Bit if we thought that for some souls, , and at some times, the life of learning, humbly offered to God was, in its own small way, one of the appointed approaches to the Divine Reality and the Divine beauty which we hope to enjoy here-after, we can still think so.
from The Weight of Glory by C.S. Lewis (as recorded in A Year With C.S. Lewis: Daily Readings From His Classic Works, p.325)