You 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.
SivanandaThe inward battle--against our mind, our wounds, and the residues of the past--is more terrible than outward battle.
SivanandaTo achieve that state of lasting happiness and absolute peace, we must first know how to calm the mind, to concentrate and go beyond the mind. By turning the mind's concentration inward, upon the self, we can deepen that experience of perfect concentration. This is the state of Meditation.
Sivananda