That base on which both Gods and Men are founded, like spokes set firmly in a hub, in which the waters’ flower by supernatural means made its appearance–who or what is he?
Atharva Veda X, 8, 34
The Gods who set the wind a-blowing, who hold in relation the five compass points, who deem themselves to be superior to offerings– these guides of the Waters, who are they?
Atharva Veda X, 8, 35
If they should say to him: Now, with regard to the abode, the small lotus, in this city of Brahman and the small akasa within it-what is there in it that is to be sought after and what is there that one should desire to understand? Then he (the teacher) should say: As far as, verily, this great akasa extends, so far extends the akasa within the heart. Both heaven and earth are contained within it, both fire and air, both sun and moon, both lightning and stars; and whatever belongs to him (i.e. the embodied creature) in this world and whatever does not, all that is contained within it (i.e. the akasa in the heart).
Sama Veda, Chandogya Upanishad VIII, I – Brahman in the Heart, 2-3
If they (the pupils) should say: If everything that exists-all beings and all desires-is contained in this city of Brahman, then what is left of it when old age overcomes it or when it perishes?
Sama Veda, Chandogya Upanishad VIII, I – Brahman in the Heart, 4
Then he (the teacher) should say: With the old age of the body, That (i.e. Brahman, described as the akasa in the heart) does not age; with the death of the body, That does not die. That Brahman and not the body is the real city of Brahman. In It all desires are contained. It is the Self-free from sin, free from old age, free from death, free from grief free from hunger, free from thirst; Its desires come true, Its thoughts come true. Just as, here on earth, people follow as they are commanded by a leader and depend upon whatever objects they desire, be it a country or a piece of land so also those who are ignorant of the Self depend upon other objects and experience the result of their good and evil deeds.
Sama Veda, Chandogya Upanishad VIII, I – Brahman in the Heart, 5
