The Kena Upanishad is named for its first word — kena, “by whom?” — and it opens by asking the question nobody thinks to ask: by whom is the mind impelled to alight on its object? by whom is the breath directed? by whom is speech spoken? Its answer produces one of the most quoted formulations in Vedanta. And then, having made the point abstractly, it tells a story in which the gods themselves cannot identify Brahman — Agni cannot burn a blade of grass and Vayu cannot move it — and a goddess has to explain to Indra what he has just failed to recognise.
❓ Kena Upanishad at a Glance
Veda: Sama — the Talavakara Brahmana; hence also Talavakara Upanishad
Extent: 4 khandas — the first two in verse, the last two in prose
Opening word: kena — “by whom?”
Central formulation: the ear of the ear, the mind of the mind
Central paradox: one who thinks he knows, does not
The story: the yaksha, Agni, Vayu, Indra and Uma Haimavati
📑 Table of Contents
❓ The Question, and the Answer
keneṣhitaṁ patati preṣhitaṁ manaḥ — by whom willed and directed does the mind alight on its object? By whom commanded does the first breath move? By whose will is this speech spoken? And which deva directs the eye and the ear?
The teacher's answer does not name anything. It shifts the question one step back and leaves it there:
śhrotrasya śhrotraṁ manaso mano yad vācho ha vācham — the ear of the ear, the mind of the mind, the speech of speech, the breath of the breath and the eye of the eye.
And then, at 1.3–1.5, the point is made negatively and repeatedly: that which speech does not express but by which speech is expressed; which the mind does not think but by which the mind is thought; which the eye does not see but by which the eye sees. That is Brahman — not what people here worship.
📌 Why it must be put this way
The Upanishad's claim is that the knower cannot become an object of its own knowing — the eye cannot see itself seeing. So Brahman can only be indicated as that by which knowing happens, never as a thing known. Every one of the five formulations has the same shape, and the repetition is the argument.
🌀 The Paradox of Knowing
The second khanda contains the line the Kena is most quoted for, and it is deliberately destabilising:
yasyāmataṁ tasya mataṁ mataṁ yasya na veda saḥ |
avijñātaṁ vijānatāṁ vijñātam avijānatām ||
He by whom It is not thought, by him It is thought; he by whom It is thought, does not know It. It is not understood by those who understand It; It is understood by those who do not understand It.
The teacher then adds the qualification that keeps it from being mere paradox: it is known in every state of awareness — known as the awareness itself rather than as its content.
💡 What the verse is guarding against
The certainty of the person who has understood the doctrine. If Brahman could be an object of thought, then thinking it would be knowing it — and the whole first khanda has just explained why it cannot. The verse is a check on the student who has followed the argument and now believes he has arrived.
🔥 The Yaksha
The last two khandas turn to prose and tell a story — and it is the reason the Kena is remembered.
Brahman won a victory for the devas, and the devas took the glory for themselves, thinking the victory was their own and the greatness theirs.
Brahman, knowing this, appeared before them — as a yaksha, a being they could not identify. They sent Agni to find out what it was.
| Who goes | What he claims | What happens |
|---|---|---|
| Agni | “I am Agni, Jataveda — I can burn everything on this earth” | Given a blade of grass to burn. He cannot burn it, and returns unable to say what the being is |
| Vayu | “I am Vayu, Matarishvan — I can carry off everything on this earth” | Given the same blade of grass. He cannot move it, and returns the same way |
| Indra | Says nothing; simply approaches | The yaksha vanishes before him |
In the space where the yaksha had been, Indra finds Uma Haimavati — a woman greatly resplendent — and she tells him what he could not find out for himself: it was Brahman, and it was in Brahman's victory that the devas had been exulting.
📌 What the story establishes
Agni and Vayu each announce a capacity — I can burn, I can carry — and each fails at it in front of a piece of grass. Indra alone says nothing, and is the only one who gets anywhere. The Upanishad then explains that Agni, Vayu and Indra rank above the other devas because they came nearest to Brahman, and Indra above them because he was the first to know what it was.
❓ Frequently Asked Questions
What question does the Kena Upanishad open with?
By whom willed does the mind alight on its object? By whom commanded does the breath move? By whose will is speech spoken? The Upanishad is named for the first word — kena, “by whom.” The answer names nothing and shifts one step back: the ear of the ear, the mind of the mind, the speech of speech.
What does 'he who thinks he knows, does not know' mean?
It is Kena 2.3, guarding against the certainty of one who has understood the doctrine. Brahman is that by which knowing happens and can never be an object of knowledge — the eye cannot see itself seeing. The teacher adds the qualification that it is known in every state of awareness — as the awareness itself rather than its content.
What is the yaksha story in the Kena Upanishad?
Brahman won a victory for the devas and they took the glory for themselves. Brahman appeared as a yaksha they could not identify. Agni claimed he could burn everything — and could not burn a blade of grass. Vayu claimed he could carry off everything — and could not move it. Indra said nothing, and the yaksha vanished; in its place stood Uma Haimavati, who told him it was Brahman.
Who is Uma Haimavati?
The figure who reveals to Indra what the yaksha was — significant because it is a goddess who supplies the knowledge the three greatest gods could not obtain. Identification with Parvati, daughter of Himavan, is traditional and made by the commentators; whether the text intends that or a personification of vidya is discussed, and both readings are held.
Why are Agni, Vayu and Indra ranked above the other gods?
Because they came nearest to Brahman — they were the ones who approached the yaksha — and Indra above them because he was first to know what it was. Worth noticing: Agni and Vayu each announced a capacity and failed at it in front of a blade of grass, while Indra said nothing and is the only one who got anywhere.
🙏 Conclusion
The Kena is four short khandas and it does its work twice, in two registers. Abstractly, it says that what you are looking for is the looking — the ear of the ear, never available as an object — and warns that anyone confident he has understood has not. Then it makes the same point as a story, by having fire fail to burn a blade of grass and wind fail to move it, and by giving the answer not to the gods who boasted but to the one who kept quiet, through a goddess who simply tells him.