Krishna said to Arjuna in the Bhagavadgita:
I am the liquidity of the waters, Arjuna,
I am the radiance in the moon and sun,
The sacred syllable (Om) in all the Vedas,
The sound in the air, and the manhood of men.
I am the pure fragrance in the earth,
And the brilliance in the fire,
The life in all beings,
And the austerity in ascetics.