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Aitareya Upanisad 1-3

How Consciousness Entered the World

ऐतरेयोपनिषद् - प्रज्ञानं ब्रह्म

The Atman alone existed before creation and willed the worlds into being. When the human form was ready, the Self split open the crown of the skull and entered - becoming the one who sees, hears, thinks, and knows within each body.

8 min read

The Aitareya Upanisad tells the most vivid creation story in all of Vedantic literature. It is not satisfied with describing how the universe was formed - it wants to know how consciousness itself entered the human body, how the senses found their places, and who exactly it is that sees through the eyes and thinks through the mind. Its answer culminates in one of the four great statements (mahavakyas) of Advaita Vedanta: Prajnanam Brahma - Consciousness is Brahman.

The Solitary Self

“In the beginning all this verily was Atman only, one and without a second. There was nothing else that winked. He bethought Himself: ‘Let Me now create the worlds.’” (AU 1.1.1)

Before creation, before time, before space - only the Self existed. Not a god sitting on a throne, not a cosmic engineer, but pure consciousness aware of itself, alone, without a second. There was nothing else to see, nothing to hear, nothing to know.

Then the Self thought: “Let Me create.”

From that thought, the worlds arose - four layers of existence: Ambhas (the heavenly waters), Marici (the solar rays, the interspace), Mara (the mortal world, the earth), and Apah (the waters below). They were born not from any material, but from the will of consciousness itself.

The Self looked at these worlds and was not satisfied. Worlds needed guardians. So from the waters, It drew forth a Person in the form of a lump, brooded over it, and shaped it. From this Person, the cosmic deities emerged - fire, wind, sun, the directions, plants, the moon, death, water.

But these deities had no home. They fell into the great ocean of existence and were afflicted by hunger and thirst. They prayed to the Self: “Find us an abode where we can dwell and eat.”

The Human Form

The Self brought them a cow. They said, “This is not enough.”

The Self brought them a horse. They said, “This is not enough.”

Then the Self brought them a human being - a fully formed body. The deities looked at it and exclaimed:

“Oh! Well done! Man alone is the masterpiece. Verily, man is a thing well done.” (AU 1.2.2)

The Self said to them: “Enter into your respective abodes.”

And so the cosmic deities entered the human form:

  • Fire became speech and entered the mouth
  • Wind became breath and entered the nostrils
  • Sun became sight and entered the eyes
  • The quarters became hearing and entered the ears
  • Plants and trees became hairs and entered the skin
  • Moon became mind and entered the heart
  • Death became apana (the downward breath) and entered the navel
  • Water became semen and entered the generative organ

The body was now complete. It could speak, breathe, see, hear, touch, think, digest, and create. All the powers of the cosmos were housed in this one form.

The Self Enters

The Self looked at the body. It was complete - but empty. The powers were there, but the one who wields them was not. The Self thought:

“How can all this exist without Me? By which way shall I enter?” (AU 1.3.5-6)

The body had a mouth, nostrils, eyes, ears - all the gateways for the deities to function through. But none of these was the Self’s entrance. The Self was not a deity to be housed; it was the one who would animate all houses.

Then the Self did something extraordinary. It split open the suture on the crown of the skull - the soft spot at the top of the head, the brahmarandhra - and entered through that door. That door is called Vidriti, the Splitting-Open. It is also called Nandana, the Place of Bliss.

Consciousness entered the body from above, through the crown - not born from matter but descending into it.

Who Am I?

Once inside, the Self looked through the faculties It had created. It saw through the eyes, heard through the ears, thought through the mind, spoke through speech. And It asked:

“If speech is uttered by the organ of speech, if smelling is done by the breath, seeing by the eyes, hearing by the ears, touching by the skin, thinking by the mind - then who am I?” (AU 1.3.6-12)

This is the moment of self-inquiry, enacted within each human being. The senses do their work - but who is it that knows they are working? The mind thinks - but who is it that knows the thinking? The Self is not any of its instruments. It is the one who wields them all.

The Aitareya Upanisad then describes the three dwellings of the Self - the three states of consciousness:

“He has three dwellings, three states of consciousness: waking, dreaming, and deep sleep.” (AU 1.3.8)

In the waking state, the Self functions through the senses, engaging with the external world. In the dream state, it withdraws the senses and creates an inner world. In deep sleep, it withdraws into the space of the heart and rests in its own nature.

The Three Births

The second chapter of the Aitareya describes the three births of the Self, tracing its journey through the cycle of life:

First birth - The Self exists as the germ in the father, drawn from all the limbs. When the father pours the semen into the mother, the Self takes its first birth.

Second birth - The embryo grows in the mother’s womb, nourished by her body. When the child is born, it takes its second birth into the world.

Third birth - When the body dies, the Self, having accomplished its duties, departs and is born again in a new form.

The sage Vamadeva, the Upanisad says, realized the truth of all three births while still in the womb and broke through the cycle:

“While still lying in the womb, I came to know all the births of these gods. A hundred strongholds, as if made of iron, confined me, yet I burst through them all swiftly, like a hawk.” (AU 1.3.10)

Consciousness is Brahman

The third chapter of the Aitareya culminates in one of the four great sayings of the Upanisads. The text asks:

“Who is this Self whom we worship? Is it that by which one sees, or that by which one hears, or that by which one smells, or that by which one speaks? What is It that we worship as this Self?” (AU 3.1.1)

The answer comes in the form of the mahavakya:

Prajnanam Brahma - Consciousness is Brahman. (AU 3.1.3)

All these - seeing, hearing, smelling, speaking, thinking - have consciousness as their source. They are impelled by consciousness. The universe has consciousness as its eye and consciousness as its end.

The Self that entered through the crown of the head, that looks through the eyes and thinks through the mind, is not a limited individual self. It is Brahman - the ultimate reality - appearing as the knower within each body.

“He, having realized oneness with pure consciousness, soared from this world and, having obtained all desires in yonder heavenly world, became immortal - yea, became immortal.” (AU 3.1.4)

The Teaching

The Aitareya Upanisad teaches:

  1. Consciousness is first. Before the universe existed, the Self alone was. Creation is not the production of matter from matter but the projection of consciousness into form.

  2. The body is a vehicle for cosmic powers. Fire, wind, sun, moon - all the forces of the cosmos are present in the human body as speech, breath, sight, and mind. The body is a microcosm of the universe.

  3. The Self enters through the crown. Consciousness is not produced by the brain or the body. It enters from above, through the brahmarandhra, the gate of bliss. This is why the crown is considered the most sacred part of the body in Vedantic tradition.

  4. The Self is not the senses. The eye sees, the ear hears, the mind thinks - but who is the one who knows the seeing, hearing, and thinking? That one is the Self, the consciousness that animates all faculties but is identical with none.

  5. Consciousness is Brahman. The knower within you is not a fragment of the divine - it is the divine itself. Prajnanam Brahma: there is no difference between the consciousness that knows and the reality that is known.

Further study: The Self that entered the body is the same Atman explored on the Atman page. The three dwellings of the Self - waking, dreaming, deep sleep - connect to the Avasthatraya analysis. Consciousness as the ultimate reality is the central teaching of the Brahman concept page.

Source citations: Aitareya Upanisad, Chapters 1-3. Key citations: AU 1.1.1-4 (creation of worlds), AU 1.2.1-4 (creation of guardians, entry into the body), AU 1.3.1-14 (entry of consciousness through the crown, three dwellings), AU 2.1.1-4 (three births), AU 3.1.1-4 (Prajnanam Brahma). Translations consulted: Swami Gambhirananda (Eight Upanishads), Swami Nikhilananda, Swami Krishnananda.