The great barrier to worship among God's people is not that we are always seeking our own satisfaction, but that our seeking is so weak and half-hearted that we settle for little sips at broken cisterns when the fountain of life is just over the next hill.
John PiperSleep is a daily reminder from God that we are not God. Once a day God sends us to bed like patients with a sickness. The sickness is a chronic tendency to think we are in control and that our work is indispensable. To cure us of this disease God turns us into helpless sacks of sand once a day.
John Piper