Series 1, Chapter 21 pg 216, Para 1: This view of our being starts from the Sankhya analysis of the dual principle in our nature, Purusha and Prakriti. Purusha is inactive, akarta; Prakriti is active, kartri: Purusha is the being full of the light of consciousness; Prakriti is the Nature, mechanical, reflecting all her works in the conscious witness, the Purusha. Prakriti works by the inequality of her three modes, gunas, in perpetual collision and intermixture and mutation with each other; and by her function of ego-mind she gets the Purusha to identify himself with all this working and so creates the sense of active, mutable, temporal personality in the silent eternity of the Self. The impure natural consciousness overclouds the pure soul-consciousness; the mind forgets the Person in the ego and the personality; we suffer the discriminating intelligence to be carried away by the sense-mind and its outgoing functions and by the desire of the life and the body. So long as the Purusha sanctions this action, ego and desire and ignorance must govern the natural being.