Yoga Sutra 1.04 there is only one sight, and the sight is knowledge alone.
Sūtra I.4 Otherwise, it conforms itself to the mental process In the extraverted state, whatever the process in the mind, Puruṣa has a process not distinguished from it. As a sūtra says: There is only one sight, and the sight is knowledge alone. (Opponent) If though it is so means that power-of-consciousness does rest in…