This is the Udgitha (Om), the most excellent; this Is endless. He who, knowing this, meditates on the Udgitha obtains the most excellent life and wins the most excellent worlds.

Sama Veda, Chandogya Upanishad I, IX - The Story of Pravahana (II), 2

Atidhanvan the son of Sunaka, having taught this Udgitha to Udarasandilya, said: As long as any of your descendants know this Udgitha, their life shall be the most excellent in this world and likewise in the other world. He who thus knows the Udgithaand meditates on it-his life shall be the most excellent in this world and likewise in the other world, yea, the other world.

Sama Veda, Chandogya Upanishad I, IX - The Story of Pravahana (II), 3-4

When the crops of the Kurus were destroyed by thunderstorms, Ushasti the son of Chakra, with his child-wife, lived in a deplorable condition in the village of a man who owned an elephant.

Sama Veda, Chandogya Upanishad I, X - The Story of Ushasti (I), 1

With the sacrifice the Gods sacrificed to the sacrifice. Those were the first established rites. These powers ascended up to heaven where dwell the ancient Gods and other beings.

Rig Veda X, 90, 16

O Lord of the Holy Word! That was the first beginning of the Word when the Seers fell to naming each object. That which was best and purest, deeply hidden within their hearts, they revealed by the power of their love.

Rig Veda X, 71,1