We have to look at the figures of speech a writer uses, his images and symbols, to realize that underneath all the complexity of human life that uneasy stare at an alien nature is still haunting us, and the problem of surmounting it is still with us.
You can never get rid of God as long as you continue to use words, because all words are part of the Word.
As civilization develops, we become more preoccupied with human life, and less conscious of our relation to non-human nature. Literature reflects this, and the more advanced the civilization, the more literature seems to concern itself with purely human problems and conflicts. The gods and heroes of the old myths fade away and give place to people like ourselves.