“Within the city of Brahman, which is the body, there is the heart and within the heart there is a little house.
This house has the shape of a lotus, and within it dwells that which is to be sought after, inquired about, and realized.
What, then is that which dwells within this house, this lotus of the heart?
Even so large as the universe outside is the universe within the lotus of the heart.
Within it are heaven and earth, the sun, the moon, the lightning and all the stars.
Whatever is in macrocosm is in this microcosm.”
CHANDOGYA UPANISHAD 18.1:1-3