Be sure no time is so well spent as that which a man spends on his knees.  (J.C. Ryle, 19th century Anglican bishop)

Unlike faithful Muslims who recite memorized lines several times a day, some Christians pray only before meals and at bedtime, often repeating some thoughtless phrases over and over. Because prayer is conversation with God, it should be as frequent and personal as a talk with a friend or family member—and include careful attention to what He is saying.
Be joyful always; pray continually; give thanks in all circumstances, for this is God’s will for you in Christ Jesus. (1 Thessalonians 5:16-18)