Raja Yoga and Yoga Sutras of Patanjali

The main textual sources for the evolving concept of Yoga are the middle Upanishads, (ca. 400 BCE), the Mahabharata (5th c. BCE) including the Bhagavad Gita (ca. 200 BCE), and the Yoga Sutras of Patanjali (200 BCE-300 CE). Yoga Sutras of Patanjali

Raja Yoga and Yoga Sutras of Patanjali

In Indian philosophy, Yoga is the name of one of the six orthodox philosophical schools.[18][19] The Yoga philosophical system is closely allied with the Samkhya school.[20] The Yoga school as expounded by Patanjali accepts the Samkhya psychology and metaphysics, but is more theistic than the Samkhya, as evidenced by the addition of a divine entity to the Samkhya's twenty-five elements of reality.[21][22] The parallels between Yoga and Samkhya were so close that Max Müller says that "the two philosophies were in popular parlance distinguished from each other as Samkhya with and Samkhya without a Lord...."[23] The intimate relationship between Samkhya and Yoga is explained by Heinrich Zimmer: