Yoga is a household word today.
Yoga is mentioned every day on radio and television as an alternative to mainstream medicine. Meditation is presented as a treatment for stress, worry and cardiac problems in general books on health and sometimes in medical texts as well. There is an enormous documented and undocumented evidence to show benefits of Yoga practices on the human mind and body. In ancient times, people lived closer to nature than present-day living permits. Sheer observation of nature by them over a period of time with a receptive mind led to the discovery that amongst other things, the key to good health is alternate stretching and relaxation of the human body.