In these volumes we have not only a gospel to the world at large, but also, to its own children, the Charter of the Hindu faith. For the first time in history, Hinduism itself forms here the subject of generalization of a Hindu mind of the highest order. What Hinduism had needed was the organizing and consolidating of its own idea, a rock where she could lie at anchor, and an authoritative utterance in which she might recognise herself. What the world had needed was a faith that had no fear of truth. Both are found in the words and writings of Swami Vivekananda. It is the latest gospel of a modern Prophet of religion and spirituality to the mankind.
The whole universe is one in the Atman. That Atman when it appears behind the universe is called God. The same Atman when it appears behind this little universe, the body, is the soul. This very soul, therefore, is the Atman in us.
-Swami Vivekananda