Aware of my body, I breathe in. Relaxing my body, I breathe out.
Calming my body, I breathe in. Caring for my body, I breathe out

Thich Nhat Hahn

Breathing is the movement of life, the vital process that connects the body with its environment. The more we open and deepen awareness of the breath and the body, the m0re we understand the intrinsic dynamism of our entire experience. Nothing stands still for a moment. Breath, heartbeat, body, feelings, thoughts, environment are facts of an indivisible, interactive system, no part of which can really be claimed as “me” or “mine”

Stephen Batchelor, Buddhism without Beliefs.