Breathing', specifically modifying one's pattern of breathing in order to trigger psychological, psychological, emotional, and spiritual effects, is a Connection Practice, is a verbally repeated statement designed to focus and maintain Intent on a specific creative goal. Affirmations may be used to facilitate Healing, Connection, or any other creative (or destructive) goal.
"The true man of old slept without dreaming and awoke without anxiety. He ate without tasting, breathing deeply, incredibly deeply. The true man breathes from his feet up, while ordinary people just breathe from the throat. The words of broken people come forth like vomit. Wallowing in lust and desire, they are but shallow in the ways of Heaven."
- Palmer, Martin, trans. The Book of Chuang Tzu. New York: Penguin Books, 2006. Chapter 6, Paragraph 4