Yoga Sutra 1.05 the mental processes are of five kinds
Sūtra I.5 The mental processes are of five kinds; they are tainted or pure The tainted are caused by the five taints (kleśa); they become the seed-bed for the growth of the accumulated karma seed-stock. The others are pure and are the field of Knowledge. They oppose involvement in the guṇa-s. They remain pure even…