Beautifully accurate analysis from C. S. Lewis in his "A Christmas Sermon for Pagans" (1946). I think it speaks to the Christian Existentialism of the Postmodern Age.
"As for the ideologies, the new invented Wrongs and Rights, does no one see the catch? If there is no real Wrong and Right, nothing good or bad in itself, none of these ideologies can be better or worse than another. For a better moral code can only mean one which comes nearer to some real or absolute code. One map of New York can be better than another only if there is a real New York for it to be truer to. If there is no objective standard, then our choice between one ideology and another becomes a matter of arbitrary taste. Our battle for democratic ideals against Nazi ideals has been a waste of time, because the one is no better than the other. Nor can there ever be any real improvement or deterioration: if there is no real goal you can’t get either nearer to it or farther from it. In fact, there is no real reason for doing anything at all.
It looks to me, neighbours, as though we shall have to set about becoming true Pagans if only as a preliminary to becoming Christians. I don’t mean that we should begin leaving little bits of bread under the tree at the end of the garden as an offering to the Dryad. I don’t mean that we should dance to Dionysus across Hampstead Heath (though perhaps a little more solemn or ecstatic gaiety and a little less commercialised “amusement” might make our holidays better than they now are). I don’t even mean (though I do very much wish) that we should recover that sympathy with nature, that religious attitude to the family, and that appetite for beauty which the better Pagans had. Perhaps what I do mean is best put like this.
If the modern post-Christian view is wrong—and every day I find it harder to think it right—then there are three kinds of people in the world. (1) Those who are sick and don’t know it (the post-Christians). (2) Those who are sick and know it (Pagans). (3) Those who have found the cure. And if you start in the first class you must go through the second to reach the third. For (in a sense) all that Christianity adds to Paganism is the cure. It confirms the old belief that in this universe we are up against Living Power: that there is a real Right and that we have failed to obey it: that existence is beautiful and terrifying. It adds a wonder of which Paganism had not distinctly heard—that the Mighty One has come down to help us, to remove our guilt, to reconcile us."