Kaushitaki 3.2
प्राणोऽस्मि प्रज्ञात्मा तं मामायुरमृतमित्युपास्स्व
Prāṇo'smi prajñātmā taṁ mām āyur amṛtam ity upāssva
I am prana, the conscious Self — meditate on me as life, as immortality.
Rig Veda · Kaushitaki Brahmana of the Rig Veda (Kaushitaki / Shankhayana shakha) · 49 mantras
Kaushitaki Upanishad
Kauṣītaki-upaniṣad
Central theme: Prana as Brahman; the post-mortem path to the world of Brahma
Mahavakya
प्राणो ब्रह्म
Prāṇo brahma
“Prana is Brahman.”
— Kaushitaki 2.1
Four adhyayas, 49 mantras. Chapter 1 narrates Chitra Gangyayani's teaching to Aruni on the two post-mortem paths — devayana (the way of the gods, no return) and pitriyana (the way of the ancestors, return through the moon). Chapter 2 is the great prana-vidya: prana is the conscious Self, the breath that holds the senses, the immortal in the mortal. Chapter 3 records Indra's self-disclosure to Pratardana: "I am prana, I am the conscious Self — meditate on me as life, as immortality." Chapter 4 is the Balaki-Ajatashatru dialogue (paralleled in Brihadaranyaka 2.1) where 16 partial definitions of Brahman are corrected to the one Self.
Kaushitaki 3.2
प्राणोऽस्मि प्रज्ञात्मा तं मामायुरमृतमित्युपास्स्व
Prāṇo'smi prajñātmā taṁ mām āyur amṛtam ity upāssva
I am prana, the conscious Self — meditate on me as life, as immortality.
Breath is not a function of the Self; the Self is the breath that breathes the breath.