BREATH AS A PICTURE OF YOUR MIND
Your breathing is the closest you can come to a picture of your mind. It is the portrait of your mind, in some sense. It goes in and goes out—it sort of fertilizes itself, so that the next breath can take place. It is not a stationary object. It moves and it stops and it moves again. It sustains the body. It is a source of life.
“Recollecting the Present” in The Path Is the Goal: A Basic Handbook of Buddhist Meditation by Chögyam Trungpa