Aitareya-Aranyaka: Second Aranyaka, Second Adhyâya, Second Khanda
1. He (breath) is likewise a Bibhradvaga (bringer of offspring). Offspring is vaga, and he (breath) supports offspring. Because he supports it, therefore there is (the poet of the sixth Mandala of the Rig-veda, called) Bharadvâga. Therefore people call him who is really Prâna (breath), Bharadvâga.
2. The Devas (speech, &c.) said to him: “He it is who chiefly causes us to dwell on earth.” Because the Devas said of him, that he chiefly caused them to dwell on earth, therefore there is (the poet of the seventh Mandala of the Rig-veda, called) Vasishtha. Therefore people call him who is really Prâna (breath), Vasishtha.
3. He (breath) went forth towards all this whatsoever. Because he went forth toward all this whatsoever, therefore there are (the poets of the eighth Mandala of the Rig-veda, called) the Pragathas. Therefore people call him who is really Prâna (breath), the Pragathas.
4. He (breath) purified all this whatsoever. Because he purified all this whatsoever, therefore there are (the hymns and also the poets of the ninth Mandala of the Rig-veda, called) the Pavamanis. Therefore people called him who is really Prâna (breath), the Pavamanis.
5. He (breath) said: “Let me be everything whatsoever, small (kshudra) and great (mahat), and this became the Kshudrasuktas and Mahastiktas.” Therefore there were (the hymns and also the poets of the tenth Mandala of the Rig-veda, called) the Kshudrasuktas (and Mahasuktas). Therefore people call him who is really Prâna (breath), the Kshudrastiktas (and Mahasuktas).
6. He (breath) said once: “You have said what is well said (su-ukta) indeed. This became a Sukta (hymn).” Therefore there was the Sukta. Therefore people call him who is really Prâna (breath), Sukta.
7. He (breath) is a Rik (verse), for he did honour to all beings (by entering into them). Because he did honour to all beings, therefore there was the Rik verse. Therefore people call him who is really Prâna (breath), Rik.
8. He (breath) is an Ardharka (half-verse), for he did honour to all places (ardha). Because he did honour to all places, therefore there was the Ardharka. Therefore people call him who is really Prâna (breath), Ardharka.
9. He (breath) is a Pada (word), for he got into all these beings. Because he got (padi) into all these beings, therefore there was the Pada (word). Therefore people call him who is really Prâna (breath), Pada.
10. He (breath) is an Akshara (syllable), for he pours out (ksharati) gifts to all these beings, and without him no one can pour out (atiksharati) gifts. Therefore there was the Akshara (syllable). Therefore people call him who is really Prâna (breath), Akshara.
11. Thus all these Rik verses, all Vedas, all sounds are one word, viz. Prâna (breath). Let him know that Prâna is all Rik verses.