When you are unoccupied for a few minutes, and especially last thing at night before falling asleep and first thing in the morning before getting up, "flood" your body with consciousness. Close your eyes. Lie flat on your back. Choose different parts of your body to focus your attention on briefly at first: hands, feet, arms, legs, abdomen, chest, head, and so on. Feel the life energy inside those parts as intensely as you can. Stay with each part for fifteen seconds or so. Then let your attention run through the body like a wave a few times, from feet to head and back again.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment