Yoga is the union between body and mind or body, mind and spirit. The traditional acceptance is of a union between one's individual consciousness and the universal consciousness (Swami Sivananda). It is a process by which one could achieve balance and harmony. It has been one of the most influential features of Hinduism. Its history starts some 5000 years ago and it has developed on the Indian peninsula. It has many different forms but all of them are based on the same four different paths and different principles. It has been proved beneficial in both physiological and psychological ways.
             Yoga is one of the six classical systems of Hindu philosophy ("Yoga").It is believed by scholars that it grew out of Stone Age Shamanism. Indian scholar Patanjali is traditionally regarded as the founder of yoga. It is also believed that it grew out of the Stone Age because of similarities between Hinduism and Mehrgarh, a Stone Age settlement ("History of Yoga"). The first evidence of Yoga's existence was found in stone seals which were dug from the Indus valley. Those stone seals depict figure performing Yoga postures. Since then it's been reformed and therefore has many different forms. Practitioner of yoga is called Yogi.
             To attain a healthy body and mind through the practice of yoga, it is based on five principles which are as follows:
             Proper Relaxation: It helps release tension in the muscles and rests the whole system. It teaches how to conserve energy and attain a deep sense of inner peace.
             Proper Exercise: It helps keep the spine and joints flexible, hence improving the circulation. It should be beneficial to the body, mind and spiritual life.
             Proper Breathing: It teaches how to use lungs to their maximum capacity and how to control the breath. Proper breathing should be deep, slow and rhythmical.
             Proper Diet: It should be well nourished and well ...