The Mandukya Upanishad: Anatomy of AUM and the Four States of Consciousness

The Core Insight of the Mandukya Upanishad

The Mandukya Upanishad, the briefest of the principal Upanishads containing a mere twelve verses, establishes that the entire universe is encapsulated in the sacred syllable AUM, which is fundamentally identical to the individual self (Atman) and the ultimate reality (Brahman). It rigorously maps the three phonetic components of AUM (A, U, and M) to the three standard phenomenological states of human consciousness: the waking state (Vaishvanara), the dreaming state (Taijasa), and the state of dreamless deep sleep (Prajna). Finally, it identifies the pregnant silence that follows the vocal chant with Turiya, the transcendent, non-dual "fourth" state that is the true, unfiltered nature of reality, underlying and witnessing the other three. It is a profound psychological and metaphysical map designed to lead the seeker from the gross physical world to the ultimate silence of pure awareness.

The Twelve Mantras: A Direct Encounter with the Text

Unlike other Upanishadic texts that utilize narratives, dialogues, or extensive metaphors, the Mandukya Upanishad is stark, analytical, and uncompromisingly direct. It reads more like a rigorous metaphysical theorem than a mystical poem. To genuinely understand its depth, we must engage directly with its twelve mantras, which are traditionally divided into two distinct halves: the ontological analysis of consciousness (verses 1-7) and the mapping of these psychological states onto the phonetic structure of AUM (verses 8-12).

The Universal Declaration (Mantras 1-2)

The text opens with a sweeping, absolute ontological claim: "Harih Aum. OM is all this. A clear explanation of it is: all that is past, present, and future is verily OM. That which is beyond the triple conception of time is also truly OM." (Mantra 1). Here, the Upanishad establishes AUM not merely as a meditative sound or a ritualistic chant, but as the acoustic manifestation of the Absolute itself. It encompasses all temporal reality—everything that has happened, is happening, and will happen—as well as the unmanifest reality that transcends time entirely.

Mantra 2 brings this macrocosmic reality into the microcosm of the individual seeker: "All this is indeed Brahman. This Atman (Self) is Brahman. This Atman has four quarters (padas)." This verse contains one of the four great aphorisms (Mahavakyas) of Vedanta: Ayam Atma Brahma (This Self is Brahman). Having inextricably equated the cosmic, universal reality with the core of individual consciousness, the text sets the stage to dissect this consciousness into four "quarters" or aspects, utilizing the metaphor of a four-legged animal or a coin with four quarters to illustrate how the whole is understood through its parts.

The First Quarter: Vaishvanara, The Waking State (Mantra 3)

"The first quarter is Vaishvanara, whose sphere of activity is the waking state (jagarita-sthana), who is conscious of external objects, who has seven limbs and nineteen mouths, and who enjoys gross objects."

Vaishvanara represents the waking consciousness common to all human beings. In this state, consciousness is projected outward toward the external, material world. The text uses highly specific, symbolic language here. The "seven limbs" refer to cosmic elements (heaven as the head, the sun and moon as the eyes, air as the breath, fire as the mouth, space as the torso, water as the bladder, and earth as the feet), indicating that the waking individual microcosmically mirrors the macrocosmic physical universe. The "nineteen mouths" represent the precise cognitive and active instruments through which the waking soul consumes reality: the five organs of perception (jnanendriyas: eyes, ears, nose, tongue, skin), the five organs of action (karmendriyas: speech, hands, feet, reproduction, excretion), the five vital breaths (pranas: prana, apana, vyana, udana, samana), and the four aspects of the inner psychological instrument (antahkarana: manas or mind, buddhi or intellect, ahamkara or ego, and chitta or mind-stuff). This is the realm of gross (sthula) experience, where we interact with tangible physical matter.

The Second Quarter: Taijasa, The Dreaming State (Mantra 4)

"The second quarter is Taijasa, whose sphere of activity is the dream state (svapna-sthana), who is conscious of internal objects, who has seven limbs and nineteen mouths, and who enjoys subtle objects."

When the physical senses shut down and external input ceases, consciousness turns inward. Taijasa, meaning "the luminous one," illuminates the internal world of dreams. Here, the mind constructs its own reality out of the latent impressions and desires (vasanas) gathered during the waking state. What is crucial in this verse is the assertion that the exact same cognitive apparatus (the nineteen mouths and seven limbs) remains active, but it now feeds on "subtle" (sukshma) objects—mental constructs, emotions, memories, and self-generated sensory phenomena—rather than physical matter. The Mandukya Upanishad recognizes dreaming not as mere hallucination or biological byproduct, but as a distinct, valid ontological theater of consciousness where the mind acts as both the creator and the experiencer of a private universe.

The Third Quarter: Prajna, The Deep Sleep State (Mantras 5-6)

"Where one, being fast asleep, does not desire any desire whatsoever and does not see any dream whatsoever, that is deep sleep (sushupti). The third quarter is Prajna, whose sphere is deep sleep, in whom all experiences become unified, who is verily a mass of consciousness (prajnanaghana), who is full of bliss (anandamaya), who experiences bliss, and who is the doorway to the knowledge (of the two other states)."

Mantra 5 introduces Prajna, the state of dreamless, deep sleep. Unlike the standard modern view of deep sleep as a cognitive blackout or an absence of consciousness, the Mandukya defines it as a state of highly concentrated, undifferentiated consciousness. The subject-object duality that plagues the waking and dreaming states entirely collapses. All diverse experiences are "unified" into a single mass of pure, unmanifest awareness. Because there is no object to desire, no external world to fear, and no active ego to suffer, it is described as "full of bliss" (anandamaya). However, Advaita Vedanta is careful to note that this is not the ultimate liberation; it is merely a state of rest covered in a veil of ignorance (avidya). It is the seed state, the "doorway" from which the diverse phenomena of dreaming and waking will inevitably sprout once again when karma dictates.

Mantra 6 elevates this deep sleep state to a macrocosmic, theological principle: "This is the Lord of all (Sarveshvara); this is the knower of all; this is the inner controller (antaryamin); this is the source of all; this is the beginning and the end of all beings." The deep sleep state corresponds macrocosmically to Ishvara, the unmanifested creator God, the causal womb of the universe from which all creation projects and into which it ultimately dissolves.

The Fourth: Turiya, The Absolute Reality (Mantra 7)

Mantra 7 is arguably the most famous, heavily analyzed, and philosophically dense verse in all of Vedantic literature. It defines the ultimate reality strictly through the process of negation (neti neti, "not this, not this"):

"They consider the Fourth (Turiya) to be that which is not inwardly cognitive (like Taijasa), not outwardly cognitive (like Vaishvanara), not both-wise cognitive, not a cognition-mass (like Prajna), not cognitive, not non-cognitive. It is unseen, incapable of being spoken of, ungraspable, having no distinctive mark, non-thinkable, that cannot be designated, the essence of the assurance of which is the state of being one with the Self, the cessation of development (prapanchasopashama), tranquil, benign, without a second (advaita). That is the Self, that is to be known."

Turiya is not a "state" in the conventional sense of a temporary condition that a human being enters and exits. It is the permanent, underlying screen upon which the transient movies of waking, dreaming, and deep sleep are projected. It is the pure, witnessing consciousness that remains continuous and unbroken through all three states. It is described as advaita (non-dual), meaning there is absolutely no separation between the observer and the observed, the subject and the object. It is the complete cessation of the phenomenal universe (prapanchasopashama).

The Synthesis of AUM (Mantras 8-12)

Having comprehensively deconstructed the psychological states of consciousness, the text shifts its focus to phonetic mysticism, mapping the four quarters of the Self to the sacred syllable OM, strictly spelled as A-U-M. Mantra 8 establishes the bridge: the Atman is OM, and the quarters of the Atman are the morae (matras) or individual letters of the syllable.

Mantra 9 (A = Vaishvanara): The letter 'A' is the first letter of the Sanskrit alphabet and the phonetic root of all human sounds (produced deep at the back of the open throat). Vaishvanara is similarly the first state, the gross foundation of everyday human experience. The text asserts they share the conceptual quality of "obtaining" (apti) or "being the first and all-pervading."

Mantra 10 (U = Taijasa): The letter 'U' is an intermediate sound, representing a phonetic transition from the back of the throat toward the front of the lips. Taijasa (the dreaming state) is intermediate, a liminal space hovering between the external waking world and the internal abyss of deep sleep. They logically share the quality of "exaltation" (utkarsha) or "intermediacy."

Mantra 11 (M = Prajna): The letter 'M' physically closes the lips, firmly ending the vocalized sound. Prajna (deep sleep) is the state where all waking and dreaming experiences merge, dissolve, and come to a close. They share the profound quality of "measuring" (miti)—as if gathering all physical and mental things into a singular point—or "merging" (apiti).

Mantra 12 (The Silence = Turiya): "That which has no parts (a-matra), the soundless, the incomprehensible, beyond all earthly phenomena, peaceful, blissful and non-dual, is the fourth. Thus OM is verily the Self. He who knows this merges his self in the Supreme Self." The literal silence that inevitably follows the chanting of AUM represents Turiya. It is not merely an absence of noise, but the pregnant, infinite emptiness that allows sound to exist in the first place. Through the meditative practice of chanting AUM, the practitioner consciously traces the dissolution of the waking state into the dream state, the dream state into deep sleep, and finally follows the fading hum of the 'M' into the absolute silence of Turiya, thereby realizing ultimate liberation.

Essential Sanskrit Terminology

• Avastha-traya: The triad of states (waking, dreaming, deep sleep) that forms the foundational basis of Vedantic psychological analysis. The Mandukya Upanishad is the quintessential text of Avastha-traya vichara (the philosophical inquiry into the three states).
• Vaishvanara: Literally translated as "relating to all men." It denotes the universal, shared aspect of the waking state, emphasizing that our physical reality is a collective dimension governed by objective physical laws.
• Taijasa: Derived from the root tejas (meaning light, fire, or illumination). It points directly to the self-illuminating nature of the dream state. In the dream world, there is no external sun or physical light, yet we see clearly; the mind powerfully illuminates its own creations.
• Prajna: Meaning "deeply conscious" or "a mass of cognition." Standard English translations like "deep sleep" fail entirely to capture that Prajna is considered by the Upanishad to be a state of intense, unified awareness, not a void of unconsciousness.
• Prajnanaghana: A "mass, block, or undifferentiated aggregate of consciousness." Used in Mantra 5, it describes how the diverse, fragmented subject-object cognitions of waking and dreaming melt into a solid, unified block of pure awareness in deep sleep.
• Prapanchasopashama: A crucial, highly specific compound word found in Mantra 7 describing Turiya. Prapancha refers to the diverse, expansive, five-fold phenomenal universe; upashama means complete cessation, sublation, or resting. It is the ultimate state where the illusion of a fragmented universe comes to a definitive end.
• Advaita: Literally "not-two" or non-dual. Appearing explicitly in the Mandukya (Mantra 7), it signifies the absolute denial of any duality between subject and object, creator and created, or observer and observed.

Classical Commentaries and Debates

The extreme brevity and density of the Mandukya Upanishad necessitated extensive commentary to unpack its vast philosophical implications, leading to the creation of some of the most profound and fiercely debated philosophical literature in Indian history.

The Advaita View (Gaudapada and Shankara): The most famous, historically significant exposition of the Mandukya is the Mandukya Karika written by Gaudapada (the grand-guru of Adi Shankaracharya). Gaudapada composed 215 verses asserting an uncompromising, radical non-dualism. He famously championed Ajativada (the doctrine of non-origination), arguing that from the absolute standpoint of Turiya, nothing is ever truly born; the universe is neither created nor destroyed. All perceived multiplicity, time, and space in the waking and dream states is ultimately a grand illusion (maya) projected by consciousness. Adi Shankara subsequently wrote an extensive commentary on both the Upanishad itself and Gaudapada's Karikas, cementing the text as the foundational, irrefutable pillar of Advaita Vedanta philosophy.

The Vishishtadvaita View (The Ramanuja Tradition): While the great theologian Sri Ramanuja did not write a direct commentary on the Mandukya, later eminent scholars of his tradition, such as Rangaramanuja, did. For the qualified non-dualists, Turiya is not an impersonal, abstract, attributeless state (Nirguna Brahman). Instead, they interpret the four quarters as four divine manifestations of the Supreme Lord Narayana. Turiya represents the Lord's absolute, transcendent form, while the other three states represent His localized, sustaining presence within the individual soul during different phases of bodily existence. They vehemently reject Gaudapada's illusionism, maintaining that the waking world is a real, purposeful creation by a loving God.

The Dvaita View (Madhvacharya): Madhvacharya, the chief proponent of strict, unyielding dualism, offered a radically different commentary to counter the Advaitins. He interpreted the Mandukya in a way that validates the eternal, unbridgeable difference between the individual soul (jiva) and the Supreme God (Brahman). For Madhva, Vaishvanara, Taijasa, Prajna, and Turiya are not merely internal states of human consciousness, but rather specific theological names for the four localized forms of Lord Vishnu (Aniruddha, Pradyumna, Sankarshana, and Vasudeva) who preside over and control these states. When the text boldly says "All this is Brahman," Madhva interprets it strictly as "All this is full of Brahman" or "controlled entirely by Brahman," firmly denying that the individual soul is ever ontologically identical to the Supreme.

Primary Sources and References

• Mandukya Upanishad with Gaudapada's Karika and Shankara's Bhashya, translated by Swami Nikhilananda. Sri Ramakrishna Math. (This remains the definitive English translation for understanding the classical Advaita perspective).
• Eight Upanishads, with the Commentary of Sankaracarya, translated by Swami Gambhirananda. Advaita Ashrama. (Highly recommended for exact, literal Sanskrit-to-English accuracy).
• The Principal Upanishads, edited and translated by S. Radhakrishnan. (Provides excellent historical, comparative philosophical context, and detailed linguistic notes).
• Waking, Dreaming, Being: Self and Consciousness in Neuroscience, Meditation, and Philosophy by Evan Thompson. (An essential modern academic text for exploring the intersection of Upanishadic thought and contemporary neurophenomenology).