Uma tells Indra: it was Brahman, and it was in Brahman's victory that you were glorified. Only then did Indra know. Agni, Vayu and Indra came nearest to Brahman and touched it, so they stand above the other devas, and Indra above all, for he knew it first. Two images teach Brahman: among the devas it is the flash of lightning, the blink of an eye; within, it is that towards which the mind goes and by which it remembers. It is to be worshipped as Tadvana, the one all beings love. The Upanishad names tapas, self-control and right action as its foundation, the Vedas as its limbs, truth as its dwelling.
यो वा एतामेवं वेदापहत्य पाप्मानमनन्ते स्वर्गे लोके ज्येये प्रतितिष्ठति प्रतितिष्ठति
yo vā etāmevaṃ vedāpahatya pāpmānamanante svarge loke jyeye pratitiṣṭhati pratitiṣṭhati
He who knows this teaching thus, having struck away sin, stands firm in the endless, highest world of heaven. He stands firm.
ॐ आप्यायन्तु ममाङ्गानि वाक्प्राणश्चक्षुः श्रोत्रमथो बलमिन्द्रियाणि च सर्वाणि । सर्वं ब्रह्मौपनिषदं माऽहं ब्रह्म निराकुर्यां मा मा ब्रह्म निराकारोदनिराकरणमस्त्वनिराकरणं मेऽस्तु । तदात्मनि निरते य उपनिषत्सु धर्मास्ते मयि सन्तु ते मयि सन्तु । ॐ शान्तिः शान्तिः शान्तिः ॥
oṃ āpyāyantu mamāṅgāni vākprāṇaścakṣuḥ śrotramatho balamindriyāṇi ca sarvāṇi | sarvaṃ brahmaupaniṣadaṃ mā'haṃ brahma nirākuryāṃ mā mā brahma nirākārodanirākaraṇamastvanirākaraṇaṃ me'stu | tadātmani nirate ya upaniṣatsu dharmāste mayi santu te mayi santu | oṃ śāntiḥ śāntiḥ śāntiḥ ||
English translation · F. Max Müller
1. She replied: 'It is Brahman. It is through the victory of Brahman that you have thus become great.' After that he knew that it was Brahman.
2. Therefore these Devas, viz. Agni, Vâyu, and Indra, are, as it were, above the other gods, for they touched it (the Brahman) nearest.
3. And therefore Indra is, as it were, above the other gods, for he touched it nearest, he first knew it.
4. This is the teaching of Brahman, with regard to the gods (mythological): It is that which now flashes forth in the lightning, and now vanishes again.
5. And this is the teaching of Brahman, with regard to the body (psychological): It is that which seems to move as mind, and by it imagination remembers again and again.
6. That Brahman is called Tadvana, by the name of Tadvana it is to be meditated on. All beings have a desire for him who knows this.
7. The Teacher: 'As you have asked me to tell you the Upanishad, the Upanishad has now been told you. We have told you the Brâhmî Upanishad.
8. 'The feet on which that Upanishad stands are penance, restraint, sacrifice; the Vedas are all its limbs, the True is its abode.
9. 'He who knows this Upanishad, and has shaken off all evil, stands in the endless, unconquerable world of heaven, yea, in the world of heaven.'
Public-domain translation by F. Max Müller (1879).
Text source: Wikisource · CC BY-SA 4.0 (Wikisource transcription of a public-domain text)