When the breath wanders the mind also is unsteady. But when the breath is calmed the mind too will be still, and the yogi achieves long life. Therefore, one should learn to control the breath. – Svatmarama, Hatha Yoga Pradipika
There is one way of breathing that is shameful and constricted. Then, there’s another way: a breath of love that takes you all the way to infinity. – Rumi