From Watches, Prayers, and Arguments by Mary Baker Eddy
Before you are ready to close your eyes in sleep, be sure you are not holding anything unlovely in your consciousness, anything unlike God; laying aside every fear, put yourself entirely in His charge. Quiet yourself with the thought that He who has all power will protect you, give you health, and all you need in abundance, and know that whether sleeping or waking, you are safe, because your life is hid with Christ in God. To declare that you are well, is the exact truth; you are not flesh, but rather the ray of divine light that, shining upon flesh, makes it appear alive. This you is spiritual, and cannot be sick. Remember, that power is exerted by merely stating a truth. All truth is the word of God. Assert it constantly, even though your so-called human mind screams falsehood. It is to acknowledge Him, to have your mind stayed on Him, to be directly benefited by the activity of good.