Why is it man and not the monkeys who decorated cave walls with pictures? Why is it that in every tribe of humans ever known there has always been some form of art and craftsmanship that goes beyond mere utility? Is it not because we long to behold and be a part of beauty?... There is in the human heart an unquenchable longing for beauty. And I am persuaded that the reason it is there is because God is the ultimately Beautiful One and he made us to long for Himself... Our desires are remnants of this urge for God because everything less than God leaves us unsatisfied. He alone is the All-Satisfying Object of Beauty. Only one vision will be sufficient for our insatiable hearts — the glory of God. For that we have been made. And it is for this we long, whether we know it or not.
John Piper