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Universal Mahavakyas (Aham Brahmasmi): sage Uddalaka teaching his son Shvetaketu by a fire with a bowl of salt water
Uddalaka teaching his son Shvetaketu with salt water, clay and a banyan seed
Mantra · Four sayings, one from each Veda, that equate the Self with Brahman

Mahavakyas

प्रज्ञानं ब्रह्म ॥

Also known as Aham Brahmasmi

In Devanagari, Tamil, Telugu, Kannada, Malayalam and English — with the meaning of every word, and the one syllable most people pronounce wrongly.

What the Mahavakyas is

The Mahavakyas, the 'great sayings', are four short sentences lifted from four different Upanishads, one belonging to each Veda. Prajnanam Brahma, 'Consciousness is Brahman', closes a passage of the Aitareya Upanishad (3.3) of the Rig Veda. Aham Brahmasmi, 'I am Brahman', comes from the Brihadaranyaka Upanishad (1.4.10) of the Shukla Yajur Veda. Tattvamasi, 'That you are', is the refrain of the Chandogya Upanishad (6.8.7) of the Sama Veda. Ayamatma Brahma, 'This Self is Brahman', is the second verse of the Mandukya Upanishad of the Atharva Veda. None of them was composed as a hymn and none has a named author. Read in the order of the Vedas, the four move from a definition (Brahman is consciousness), to a first-person recognition (I am Brahman), to a teacher addressing a student (you are That), to a plain statement about the Self within (this Self is Brahman). Advaita Vedanta treats them as the summary of the whole Upanishadic teaching.

A father's lesson and a son's initiation

The best known of the four is spoken by a father to his son. In the sixth chapter of the Chandogya Upanishad, Shvetaketu is sent away to study at twelve and comes home at twenty-four, sure of his learning and rather pleased with himself. His father, the sage Uddalaka Aruni, asks whether he was ever taught the one thing by which the unheard becomes heard and the unknown becomes known. Shvetaketu admits he was not. Uddalaka then teaches through ordinary things: a lump of clay that explains every clay pot, salt that vanishes into water yet flavours every sip, the invisible essence inside a banyan seed from which the great tree stands. Each lesson ends with the same line, 'That you are, Shvetaketu', so the saying works as a refrain rather than a single announcement. The grouping of the four sayings as a set is later. The Shukarahasya Upanishad relates that Vyasa asked Shiva how to instruct his young son Shuka, and that Shiva taught the boy these four sentences, with Vyasa listening. According to that text, Shuka meditated on them and was freed while still living. In the Advaita monastic tradition the four are still given to a sannyasi at initiation.

The mantra, in six scripts

DevanagariSanskrit & Hindiप्रज्ञानं ब्रह्म ॥
Tamilப்ரஜ்ஞாநம் ப்ரஹ்ம ॥
Teluguప్రజ్ఞానం బ్రహ్మ ॥
Kannadaಪ್ರಜ್ಞಾನಂ ಬ್ರಹ್ಮ ॥
Malayalamപ്രജ്ഞാനം ബ്രഹ്മ ॥
EnglishRoman transliterationprajñānaṃ brahma ||
“Consciousness is Brahman. Aitareya Upanishad 3.3 (Rig Veda), closing the passage that says everything that lives is guided by and rests on consciousness.”
प्रज्ञानं
prajñānaṃ — consciousness, awareness
ब्रह्म
brahma — (is) Brahman, the absolute

Mahavakyas lyrics in full

The four sayings on their own, without their surrounding passages, in the order of the Vedas: Rig, Yajur, Sama and Atharva.

All 4 verses, in Sanskrit, Tamil, Telugu, Kannada, Malayalam and English, each with its meaning. Choose a script:

Download the Mahavakyas PDFAll 4 verses with their meanings, in Sanskrit. Free to print and keep.

Verse 1

प्रज्ञानं ब्रह्म ॥

Consciousness is Brahman. Aitareya Upanishad 3.3 (Rig Veda), closing the passage that says everything that lives is guided by and rests on consciousness.

Verse 2

अहं ब्रह्मास्मि ॥

I am Brahman. Brihadaranyaka Upanishad 1.4.10 (Shukla Yajur Veda): in the beginning Brahman knew itself as 'I am Brahman' and so became the whole; the text says whoever knows this likewise becomes the whole.

Verse 3

तत्त्वमसि ॥

That you are. Chandogya Upanishad 6.8.7 (Sama Veda), the refrain of Uddalaka's teaching to his son Shvetaketu: the finest essence is the self of all this, it is the truth, it is the Self, and that is what you are.

Verse 4

अयमात्मा ब्रह्म ॥

This Self is Brahman. Mandukya Upanishad 2 (Atharva Veda): all this is Brahman, this Self is Brahman, and this Self has four quarters.

The syllable people get wrong

In ahaṃ brahmāsmi the second word is brahma joined to asmi, so the long ā sits in the middle: say brah-MAA-smi, with the h after the r actually breathed, not 'bram-a-smee'. The joined vowel is what carries the meaning 'am', so shortening it blurs the two words together.

Questions

Not in the sense of a personal boast. In the Brihadaranyaka Upanishad the words are first spoken by Brahman itself: in the beginning it knew itself as 'I am Brahman' and so became the whole. The text then says whoever knows this in the same way becomes the whole, and not even the gods can prevent it. Shankara's commentary reads 'Brahman' here as the unconditioned reality, not a deity with attributes, and the 'I' as the Self rather than the individual personality.
No. Advaita reads it as strict identity between That (Brahman) and you (the Self). Some modern scholars, including Joel Brereton and Patrick Olivelle, point out that tat is neuter and translate it as 'that is how you are', referring back to the fine essence just described. Madhvacharya's Dvaita school divides the words as atat tvam asi, 'you are not That', keeping the soul distinct from the Supreme. Vishishtadvaita and Shuddhadvaita each give their own qualified reading.
There are four because each one is taken from a different Veda, so together they stand for the entire Vedic scripture. Tradition links each of the four mathas associated with Adi Shankaracharya to one Veda and its saying: Sringeri in the south to Aham Brahmasmi, Dwarka in the west to Tattvamasi, Puri in the east to Prajnanam Brahma, and Jyotirmath in the north to Ayamatma Brahma.
Later literature cites further 'great sayings', the most common being Sarvam khalvidam Brahma, 'All this is indeed Brahman', from the Chandogya Upanishad (3.14.1). The word itself also has an older, technical use in Mimamsa, where a mahavakya simply means a long sentence that gathers smaller ones into a single meaning. The fixed list of four, one per Veda, is the Advaita grouping found in texts such as the Shukarahasya Upanishad.
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