The mind is responsible for the feelings of pleasure and pain. Control of the mind is the highest Yoga.
SivanandaYour thoughts should agree with your words, and the words should agree with your actions. In this world people think one thing, say another thing, and do something else. This is horrible. This is crookedness.
SivanandaYou can have calmness of mind at all times by the practice of yoga. You can have restful sleep. You can have increased energy, vigour, vitality, longevity, and a high standard of health. You can turn out efficient work within a short space of time. You can have success in every walk of life.
Sivananda