Mahabharata Udyoga Parva Chapter 44:3

Mahabharata Udyoga Parva (Sanat-sujata Parva) Chapter 44:3 Sanat-sujata said, 'Indeed, Brahman as (perceived) may appear as white, red, black, brown, or bright. But neither on the earth, nor in the sky, nor in the water of the ocean, is there anything like it, Neither in the stars, nor in lightning, nor in the clouds, is its form to be seen, nor is it visible in the atmosphere, nor in the deities, nor in the moon, nor in the sun. Neither in the Riks, nor among the Yajus, nor among the Atharvans, nor in the pure Samans, it is to be found. Verily, O king, it is not to be found in Rathantara or Varhadratha, nor in great sacrifices. Incapable of being compassed and lying beyond the reach of the limited intellect, even the universal Destroyer, after the Dissolution, is himself lost in it. Incapable of being gazed at, it is subtle as the edge of the razor, and grosser than mountains. It is the basis upon which everything is founded; it is unchangeable; it is this visible universe (omnipresent); it is vast; it is delightful; creatures have all sprung from it and are to return to it. Free from all kinds of duality, it is manifest as the universe and all-pervading. Men of learning say that it is without any change, except in the language used to describe it. They are emancipated that are acquainted with That in which this universe is established.