Smaller than the smallest, greater than the greatest, this Self forever dwells within the hearts of all. When a man is free from desire, his mind and senses purified, he beholds the glory of the Self and is without sorrow. Though seated, he travels far; though at rest, he moves all things. Who but the purest of the pure can realize this Effulgent Being, who is joy and who is beyond joy. Formless is he, though inhabiting form. In the midst of the fleeting he abides forever. All-pervading and supreme is the Self. The wise man, knowing him in his true nature, transcends all grief.

(The Upanishads)