In Indian philosophy, Yoga is among other things, the name of one of the six āstika philosophical schools. The Yoga philosophical system is closely allied with the dualism premises of <answer>Samkhya</answer> school. The Yoga school accepts the <answer>Samkhya</answer> psychology and metaphysics, but is considered theistic because it accepts the concept of "personal god", unlike <answer>Samkhya</answer>. The epistemology of the Yoga school, like the Sāmkhya school, relies on three of six prāmaṇas as the means of gaining reliable knowledge: pratyakṣa (perception), anumāṇa (inference) and śabda (āptavacana, word/testimony of reliable sources).
To what school of Hindu philosophy is yoga aligned?
Samkhya