Brihadaranayaka Upanishad – Madhu Khanda – Chapter 2
Chapter 2, Brahmana 1: The Internal Controller (Antaryāmin Brahmana)
This section introduces the concept of the Antaryāmin — the Inner Controller who governs all beings from within.
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Yājñavalkya says: that which is unseen but makes the seen possible is the Inner Self.
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The Self controls the earth from within but remains invisible—He is the Antaryāmin.
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The Self controls water from within; though unseen, it sustains all.
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Fire too is governed from within by the same hidden Self.
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The Self operates air from within; it breathes life into everything.
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Ether (space) is moved and held by the Self from within.
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The Self governs the physical body from within but cannot be seen by the senses.
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The Self controls all organs and faculties while remaining untouched by them.
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The Self is the hidden mover of the mind—thought itself depends on It.
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The Self guides the intellect from within; all reasoning originates in it.
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The Self governs ego and individuality but is beyond both.
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The Self controls the unseen forces in nature (like brightness and order).
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The gods are also governed from within by this Self, the ultimate Lord.
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Yājñavalkya explains that the entire world, animate and inanimate, is controlled from within.
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The Self is immortal, formless, and beyond decay, even as it directs the perishable.
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The Self is neither known through rituals nor speech, but through inner realization.
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The Inner Controller is beyond good and evil, untouched by action.
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Knowing this Self, the sage transcends sorrow and attains fearlessness.
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One who realizes the Antaryāmin within everything is freed from duality.
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The seeker who knows the Self becomes the Self — infinite, eternal, and free.

Chapter 2, Brahmana 2: The Dialogue on Knowledge and Self
This section deepens the inquiry into the Self through questions by Uddālaka and answers by Yājñavalkya.
- Uddālaka questions Yājñavalkya about the Self and its relation to consciousness.
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Yājñavalkya responds: the Self is not this or that (neti, neti)—it is beyond attributes.
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He says the Self is imperishable, untouched by karma, and beyond cause and effect.
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Even gods cannot fully comprehend the Self—it is the unseen Seer of all.
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All faculties function only because of the Self within—when the Self departs, everything collapses.
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The Self does not act, yet all actions occur in its presence—like the sun illuminating without doing.
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One who knows the Self becomes fearless and reaches the state of no return (liberation).
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Yājñavalkya states that this knowledge should only be taught to one who is calm, devoted, and disciplined.
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Knowing the Self leads to immortality; everything else is bound by death and decay.

Chapter 2, Brahmana 3: The Immanence of the Self
This section reflects on the Self as the ultimate support and essence of everything we perceive.
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Everything we love—be it spouse, child, or wealth—is loved for the sake of the Self alone.
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All experiences of the world are meaningful only in relation to the perceiving Self.
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The Self is the inner light that makes seeing, hearing, and thinking possible.
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All beings are connected through the Self; those who see difference fall into ignorance.
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The Self is the unseen seer, unheard hearer, unthought thinker, and ununderstood understander.
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Knowing the Self, one becomes the Self—immortal, beyond all duality and death.
Chapter 2, Brahmana 4: The Great Teaching of Yājñavalkya to Maitreyī (Part 1)
Yājñavalkya shares profound truths about the Self with his wife Maitreyī before renouncing worldly life.
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Yājñavalkya tells Maitreyī he is leaving worldly life and offers to divide his possessions.
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Maitreyī asks: “Can wealth give me immortality?” She seeks spiritual knowledge instead.
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Yājñavalkya replies: No, wealth cannot give immortality—only Self-knowledge can.
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He praises Maitreyī’s inquiry and begins to explain the nature of the Self.
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The Self is the reason we love anything—without it, love has no meaning.
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All relationships and objects are dear only because the Self exists within us.
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Yājñavalkya emphasizes: Know the Self to know everything; without it, nothing is truly known.
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The Self is the root of all perceptions; through it, everything else is known.
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A knower of the Self sees unity behind all diversity and transcends sorrow.
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The Self is the immortal, unchanging witness of all change and experience.
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Realization of the Self destroys all fear and leads to total freedom.
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Yājñavalkya says: Where there is duality, one sees another—but in Self-realization, all becomes one.

Chapter 2, Brahmana 5: The Great Teaching to Maitreyī (Part 2)
Yājñavalkya continues the dialogue with Maitreyī, deepening the explanation of the Self and negation of all that is not Self.
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Yājñavalkya declares that all beings merge into the Self, just as salt dissolves in water.
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The Self is imperceptible—formless, soundless, and beyond grasp—yet it pervades everything.
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Upon Self-realization, all distinctions vanish; only the One remains.
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When the Self is known, no more fear or confusion remains.
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The Self is the light by which all other lights are known.
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Nothing else illumines the Self; it is self-luminous and the source of all awareness.
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The body dies, but the Self does not; it is eternal, subtle, and real.
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Just as a cart falls when its axle breaks, the body falls when the Self departs.
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The Self neither goes nor comes—it is ever-present, unchanging, and one.
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The knower of Brahman becomes Brahman; he transcends all limitations.
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The Self is not attained through logic but through inner realization guided by the Upanishads.
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Yājñavalkya says: only the wise who are detached can realize the Self.
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The Self is the ultimate cause and sustainer of all things.
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At death, speech merges into the mind, mind into prāṇa, and everything into the Self.
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He who knows the Self becomes fearless, liberated, and one with infinite existence.
Chapter 2, Brahmana 6: The Immortality of the Self
This brief section describes the state of the knower at the time of death and affirms the unchanging nature of the Self.
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When a person is about to die, speech merges into the mind, and vital functions return to their source.
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All faculties return to the Self, and the individual merges into the universal essence.
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Just as a lump of salt dissolves in water and cannot be separated, the Self merges completely into Brahman.
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Realizing this Self as eternal and indivisible, one transcends death and attains liberation.
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