Breathing (n.) is not complex at all, nor walking, nor the circulation of blood; they become complex only when stated in physiological terms.
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Breathing (n.) watched without forcing or clutching slows of itself until it seems to stop — and the way a person breathes shows the way he lives.
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Breathing (n.) shows the relativity of voluntary and involuntary: with a slight shift it is as easy to feel "It breathes me" as "I breathe."
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Breathing (n.) slow and easy from the belly works on consciousness like a bellows, leaving it still and bright.
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Breathing (n.) is where control and spontaneity, voluntary and involuntary, meet most plainly; to clutch at air with the lungs is to clutch at life.