"Yoga is the science that teaches you the method of uniting the individual will with the Cosmic Will. Yoga transmutes the unregenerate nature and increases energy, vitality, vigour, and bestows longevity and a high standard of health. Try to increase the power of concentration. Japa will help you to have a one-pointed mind. (What Is Actual Yoga)"
January 1, 1970
https://en.wikiquote.org/wiki/Swami_Sivananda