Yoga Sutras of Patanjali
In the Theravada-tradition traditions two types of Buddhist meditation practices are being followed, namely samatha (Pāli; Sanskrit: "śamatha"; "calm") and vipassana (insight). Samatha is a primary meditation aimed at calming the mind, and it is also being used in other Indian traditions, most notably dhyana as described in the "Yoga Sutras of Patanjali".