37Then he returned to his disciples and found them sleeping. "Simon," he said to Peter, "are you asleep? Could you not keep watch for one hour? 38Watch and pray so that you will not fall into temptation. The spirit is willing, but the flesh is weak."Jesus makes it sound easy, doesn't he? "Couldn't you stay awake for an hour?"Mark 14.37-38
When I hear of people who spend an hour a day meditating, I wonder how they do it. I strain to spend fifteen minutes, and anything longer tends to degenerate into distraction and lapses of concentration.How do we address this weakness of the flesh? I guess it's with training, and the Apostle Paul will have something to say about that later.Philip Yancey
Prayer — Does it Make any Difference?
(Zondervan, 2006), p.158