How can we attain to knowledge of God and why do we not know Him? Because, from morning till night, we are busy in the external world, and when night comes, we are tired and only wish to sleep. If we can close ourselves to the outer world, we shall see the inner world. If we can close our outward senses, our mind will turn inward. We see through the eyes, but it is not the eyes that see. The mind sees through the eyes. And the consciousness sees through the mind.