If we practice the science of yoga, which is useful to the entire human community and which yields happiness both here and hereafter - if we practice it without fail, we will then attain physical, mental, and spiritual happiness, and our minds will flood towards the Self.
Sri K. Pattabhi Jois (2010). “Yoga Mala: The Seminal Treatise and Guide from the Living Master of Ashtanga Yoga”, p.21, Macmillan