Yoga is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India. There is a broad variety of yoga schools, practices, and goals in Hinduism, Buddhism, and Jainism. Among the most well-known types of yoga are Hatha Yoga and Rāja Yoga.
The Hatha Yoga practice emphasizes proper diet, processes to internally purify the body, proper breathing and its regulation particularly during the yoga practice, and the exercise routine consisting of asanas (bodily postures).
The aims of Hatha Yoga have traditionally been the same as those of other varieties of yoga. They include physical siddhis (special powers or bodily benefits such as slowing the effects of ageing) and spiritual liberation (moksha, mukti).
Techniques of Hatha Yoga have become popular throughout the world as a form of physical exercise for relaxation, body flexibility, strength and personal concentration. It is now colloquially termed simply as "yoga".
It has also developed into new movements and styles, such as the Iyengar Yoga or Astanga Yoga, but these are not same as the traditional Hatha Yoga