The development of yoga can be traced back over 5,000 years, but some researchers think that yoga may be up to 10,000 years old old. The secretive nature of its teachings were originally handed down orally from teacher to student. The Indian sage Patanjali has been credited with the collation of this oral tradition into his classical work, the Yoga Sutra, a 2,000-year-old treatise on yogic philosophy. A collection of 195 statements, the Sutra provides a philosophical guidebook for dealing with the challenges of being human. The following chronological history of yoga is adapted from The Heart of Yoga, Developing a Personal Practice, by T.K.V. Desikachar, 1995.
When the five senses and the mind are still, and reason itself rests in silence,