Meditation, you know, comes by a process imagination. You go through all these processes purification of the elements - making the one melt the other, that into the next higher, that into mind, that into spirit, and then you are spirit.
Swami VivekanandaThe body is the external coating and the mind is the internal coating of the Atman who is the real perceiver, the real enjoyer, the being in the body who is working the body by means of the internal organ or the mind.
Swami VivekanandaThe calm man is not the man who is dull. You must not mistake Sattva for dullness or laziness. The calm man is the one who has control over the mind waves. Activity is the manifestation of inferior strength, calmness, of the superior.
Swami Vivekananda