From John Piper:
The deepest longing of the human heart is to know and enjoy the glory of God. We were made for this. "ring my sons from afar and my daughters from the end of the earth ... whom I created for my glory," says the Lord (Isaiah 43:6-7). To see it, to savor it, and to show it—that is why we exist. The untracked, unimaginable stretches of the created universe are a parable about the inexhaustible "riches of his glory" (Romans 9:23) ... The ache of every human heart is an ache for this. ... The point is this: we were made to know and treasure the glory of God above all things; and when we trade that treasure for images, everything is disordered. The sun of God's glory was made to shine at the center of the solar system of our soul. And when it does, all the planets of our life are held in their proper orbit. But when the sun is displaced, everything flies apart. The healing of the soul begins by restoring the glory of God to its flaming, all-attracting place at the center (Piper, Seeing and Savoring Jesus Christ, 14-15).