The misery that we suffer comes from ignorance, from non-discrimination between the real and the unreal. We all take the bad for the good, the dream for the reality. Soul is the only reality, and we have forgotten it. Body is an unreal dream, and we think we are all bodies. This non-discrimination is the cause of misery.
It is caused by ignorance. When discrimination comes, it brings strength, and then alone can we avoid all these various ideas of body, heavens, and gods. This ignorance arises through differentiating by species, sign, and place...........The highest philosophy of the Yogi is based upon this fact, that the Purusha is pure and perfect, and is the only "simple" that exists in this universe.
The body and mind are compounds, and yet we are ever identifying ourselves with them This is the great mistake that the distinction has been lost. When this power of discrimination has been attained, man sees that everything in this world, mental and physical, is a compound, and, as such, cannot be the Purusha. (I, 287)