The little space within the heart is as great as this vast universe. The heavens and earth are there, and the sun, and the moon, and the stars; the fire and lightening and winds are there; and that now is and all that is not: for the whole universe is Him and He dwells within our heart...This is the real castle of Brahman wherein dwells all the love of the universe. It is Atman, pure spirit, beyond sorrow, old age, and death; beyond evil and hunger and thirst. It is Atman whose love is Truth, whose thoughts are Truth.
- Chandogya Upanishad