SLEEP IS A SURRENDER, a laying down of arms. Whatever plans you're making, whatever work you're up to your ears in, whatever pleasures you're enjoying, whatever sorrows or anxieties or problems you're in the midst of, you set them aside, find a place to stretch out somewhere, close your eyes, and wait for sleep.
All the things that make you the particular person you are stop working—your thoughts and feelings, the changing expressions of your face, the constant moving around, the yammering will, the relentless or not so relentless purpose. But all the other things keep on working with a will and purpose of their own. You go on breathing in and out. Your heart goes on beating. If some faint thought stirs somewhere in the depths of you, it's converted into a dream so you can go on sleeping and not have to wake up to think it through before it's time.
Whether you're just or unjust, you have the innocence of a cat dozing under the stove. Whether you're old or young, homely or fair, you take on the serenity of marble. You have given up being in charge of your life. You have put yourself into the hands of the night.
It is a rehearsal for the final laying down of arms, of course, when you trust yourself to the same unseen benevolence to see you through the dark and to wake you when the time comes—with new hope, new strength—into the return again of light.