If you build that foundation, both the moral and the ethical foundation, as well as the business foundation, and the experience foundation, then the building wont crumble. – Henry Kravis
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