It was becoming clearer and clearer that if I wanted to come to the end of my life and not say, “I’ve wasted it!” then I would need to press all the way in, and all the way up, to the ultimate purpose of God and join him in it. If my life was to have a single, all-satisfying, unifying passion, it would have to be God’s passion.
John Piper, Don’t Waste Your Life