For physical and mental health as well as spiritual growth.
Our physical body is meant to move and exercise. If our lifestyle does not provide natural motion of muscles and joints, then disease and great discomfort will ensue with time. Proper exercise should be pleasant to the practitioner while beneficial to the body, mind and spiritual life.
Kapala bati,Agni sara and Sudarshan kriya are must for a yoga practitioner
Long before the invention of cars, planes, telephones, computers, freeways and other modern triggers of stress, the Rishis (sages or seers) and Yogis of yore devised very powerful techniques of deep relaxation. As a matter of fact, many modern stress-management and relaxation methods borrow heavily from this tradition. By relaxing deeply all the muscles the Yogi can thoroughly rejuvenate his nervous system and attain a deep sense of inner peace.
Besides being responsible for building our physical body, the foods we eat profoundly affect our mind. For maximum body-mind efficiency and complete spiritual awareness, Yoga advocates a lacto-vegetarian diet( avoid eating any food with lots of oil,Garlic, Onion, Sugar,Chillies,pepper) This is an integral part of the Yogic lifestyle.
Here is the most important point of all, we become what we think. Thus we should exert to entertain positive and creative thoughts as these will contribute to vibrant health and a peaceful, joyful mind. A positive outlook on life can be developed by learning and practicing the teachings of the philosophy of Vedanta. The mind will be brought under perfect control by regular practice of meditation.