Taittiriyaka-Upanishad: Third Valli, Sixth Anuvaka

He perceived that bliss is Brahman, for from bliss these beings are born; by bliss, when born, they live; into bliss they enter at their death.

This is the knowledge of Bhrigu and Varuna, exalted in the highest heaven (in the heart). He who knows this becomes exalted, becomes rich in food, and able to eat food (healthy), becomes great by offspring, cattle, and the splendour of his knowledge (of Brahman), great by fame.