Because the Soul is not made of matter, since it is spiritual, it cannot obey the laws of matter, it cannot be judged by the laws of matter.
Swami VivekanandaAll action of Sattva, a modification of Prakriti characterised by light and happiness, is for the soul. When Sattva is free from egoism and illuminated with the pure intelligence of Purusha, it is called the self-centred one, because in that state it becomes independent of all relations.
Swami VivekanandaTake up one idea. Make that one idea your life - think of it, dream of it, live on that idea. Let the brain, muscles, nerves, every part of your body, be full of that idea, and just leave every other idea alone. This is the way to success.
Swami VivekanandaKnowledge of the Absolute depends upon no book, nor upon anything; it is absolute in itself. No amount of study will give this knowledge; is not theory, it is realization. Cleanse the dust from the mirror, purify your own mind, and in a flash you know that you are Brahman.
Swami Vivekananda