what do you know about YOGA?

Yoga is a family of ancient spiritual practices originating in India. It is one of the six schools of Hindu philosophy, in which it is often paired with Samkhya, and they are referred together as the Samkhya-Yoga school. Today in India and across the World, Yoga is a vibrant living tradition and is seen as a means to both physical health and spiritual mastery. Karma Yoga (yoga of Action), Jnana Yoga (yoga of Knowledge), Bhakti Yoga (yoga of Devotion), and Raja Yoga (yoga of Meditation) are considered the four main paths of Yoga. Outside India, Yoga has become primarily associated with the practice of asanas (postures) of Hatha Yoga, a system of Yoga that developed from - and in order to prepare students for the practise of - Raja Yoga. Yoga as a means of spiritual attainment is central to Vedanta, Hinduism, Buddhism, and Jainism, and has influenced other religious and spiritual practices throughout the world. Hindu texts establishing the basis for yoga include the Upanishads, the Bhagavad Gita, the Yoga Sutras of Patanjali, the Hatha Yoga Pradipika and many others. see : http://en.wikipedia.org/wiki/Yoga