Tim Keller on prayer:
You have to be faithful and regular in prayer. Most of us pursue joy in prayer, don’t get it, and then don’t stick at it. But as the Puritans used to say, “Mind your work, not your wages.” Prayer is a duty—even if we don’t get much out of it emotionally, we nevertheless owe it to God.
Christians necessarily believe we depend on God for everything—a prayer-less Christian, then, is a contradiction in terms. But if there is a secret to this, it may be right here:
When we seek God for himself, not for some emotional payoff, and we develop habits of regular prayer, the sense of joy and of his presence is more likely to come and come more often.