2 Quotes by Upanishads

As a metal disc, tarnished by dust, shines bright again after it has been cleaned, so is the one incarnate person fulfilled and free from grief, after he has seen the real nature of the self. And when by means of the real nature of his self he sees, as by a lamp, the real nature of brahman, then having known the unborn, eternal Being, who is beyond all natures, he is freed from all fetters.

The Self, smaller than small, greater than great, is hidden in the heart of every creature. A man who has left all grief behind, sees the majesty, the Lord, the passionless, by the resting of the mind and senses.