Yoga philosophy was first described in the yogas sutras, a collection of aphorisms offered more than 2000 years ago by the indian sage, patanjali. The sutras were the earliest - and are still the most profound and enligh...Yoga philosophy was first described in the yogas sutras, a collection of aphorisms offered more than 2000 years ago by the indian sage, patanjali. The sutras were the earliest - and are still the most profound and enlightening - study of the human psyche.