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What Is Om (ॐ)? Origin of Omkar, Its Connection to Shiva and the Inner Meaning of “Om Namah Shivaya”

When we ask, “ॐ क्या है – what is Om?”, the answer in Sanatan Dharma is very clear: Om (ॐ), or Omkar, is the primordial sound of the universe, the subtle vibration from which all creation unfolds. It is not merely a syllable or a religious symbol; it is the distilled essence of the entire cosmos and a direct expression of the formless, beginningless and endless Supreme Reality.

According to the Shiva Purana, Om is the very sound-form of Lord Shiva Himself. From this one mantra, the Vedas, countless other mantras and all spiritual knowledge arise. In daily Hindu practice, this cosmic sound condenses into the beloved five-syllable mantra “ॐ नमः शिवाय – Om Namah Shivaya,” which connects the devotee directly to Shiva-tattva, the essential nature of Shiva.

What Is Om (ॐ) in Sanatan Dharma?

Om is called the seed (bīja) of the universe. The sages of the Vedas experienced that behind every form, behind every word, behind every thought, there is a subtle vibration. That subtlest vibration, the womb of all other sounds, is Om.

In the Upanishads, Om is identified with Brahman, the Absolute. It is the bridge between the manifest and the unmanifest, between the devotee and the Divine. To chant Om is to tune one’s own being to the very frequency on which the universe itself is humming.

Sanatan tradition therefore calls Om “nādabrahma” – Brahman as sound. This is not a sound heard by the outer ear alone, but the inner, unstruck sound that can be perceived in deep meditation within the heart.

The Origin of Omkar According to Shiva Purana

The Vidyashvara Samhita (Vidyēshvara Saṁhitā) of the Shiva Purana, chapter 9, gives a detailed and authoritative explanation of Om’s origin. There, Lord Shiva Himself reveals the mystery of Omkar to Brahma and Vishnu.

Shiva declares that the very first sound to arise from His own mouth was Om. This Om is His sound-form (nāda-svarūpa), His direct manifestation as vibration. He describes this mantra as “mahā maṅgalakārī” – supremely auspicious and beneficent, pervading the entire universe.

Om from Shiva’s Five Faces

Shiva is often depicted as Panchamukha – the Lord with five faces. In the Shiva Purana description, each of these five faces emits one aspect of the Om sound:

From the northern face arises the sound of अकार (a-kāra) – “a”
From the western face arises उकार (u-kāra) – “u”
From the southern face arises मकार (ma-kāra) – “m”
From the eastern face arises the bindu (ँ) – the nasal resonance
From the central, upward-facing head arises nāda – the subtle, unstruck inner sound

These five together form the complete Om (ॐ). So Om is not an arbitrary syllable; it is the exact coming-together of Shiva’s fivefold expression as sound. In other words, Om is Shiva, and Shiva is Om in sonic form.

Because this Omkar arises from Shiva’s own being, it becomes the source of all sacred revelation. Through Om, the Vedas are revealed; from the Vedas flow innumerable mantras, each with its own specific power. Yet the root and crown of them all is Om itself.

“Om Namah Shivaya”: Origin and Hidden Meaning of the Panchakshara Mantra

From this cosmic Om emerges one of the most loved and powerful mantras in Shaiva tradition: “ॐ नमः शिवाय – Om Namah Shivaya.” It is called the Panchakshara Mantra – the five-syllabled mantra (na, ma, śi, vā, ya).

Its simple verbal meaning is: “I bow to Shiva,” or “Salutations to Lord Shiva.” But in Sanatan Dharma, mantras are not just sentences; each syllable is a living power. The five syllables of Namah Shivaya are linked with the five great elements (pañca-mahābhūta) that make up the universe and our own bodies.

The Five Syllables and the Five Elements

न (Na) – Earth (pṛthvī)
म (Ma) – Water (jala)
शि (Shi) – Fire (agni)
वा (Va) – Air (vāyu)
य (Ya) – Ether/Space (ākāśa)

When a devotee chants “Om Namah Shivaya,” all five elements within and around him are being purified and harmonized. The mantra addresses Shiva not merely as a deity outside, but as the very consciousness that pervades earth, water, fire, air and space.

This Panchakshara is directly related to Shiva’s five faces and His five cosmic functions (described below). It is a sonic map of the entire universe, placed on the tongue of the devotee.

Panchakshara and the Vedic Seed Letters

Shiva Purana-based tradition further connects this Panchakshara mantra with the five original seed vowels: अ (a), इ (i), उ (u), ऋ (ṛ), लृ (lṛ). From these primordial sounds arise the entire set of mātṛkā varṇa – the mother-letters of the Sanskrit alphabet.

From these mother-letters emerges the Tripadā Gāyatrī, the three-footed Gayatri mantra, from which in turn the four Vedas expand. From the Vedas come crores of mantras, each serving different purposes – for health, prosperity, protection, knowledge and so on.

Yet Shaiva scriptures hold that among these countless mantras, the Panchakshara “Om Namah Shivaya” is especially exalted, because it grants both bhoga (worldly enjoyment, righteous fulfilment of life) and moksha (liberation). It is not a mantra of renunciation alone, but of completion.

Shiva’s Five Faces and His Five Cosmic Acts

Shiva’s five faces are not only about form; they represent five cosmic functions, known in Shaiva theology as the Panchakritya – the five acts of the Lord. In the Shiva Purana, Brahma and Vishnu once humbly ask Shiva about the secret of these five faces. Shiva then explains that for the sake of the universe He has ordained five great operations:

Srishti (Creation) – the arising of the universe. This function is entrusted to Brahma.
Sthiti (Sustenance) – the maintenance and preservation of the universe. This is performed by Vishnu.
Samhara (Destruction/Transformation) – the dissolution or transformative destruction of forms, given to Rudra.
Tirobhava (Veiling) – the act of covering the soul with the veil of Maya, causing bondage and ignorance. This is under Mahesh.
Anugraha (Grace) – the bestowal of liberation, the lifting of the veil and granting of moksha. This act belongs to Shiva alone.

To carry out these five operations, Shiva manifests five faces: four oriented toward the four directions, and a fifth central or upward-facing head symbolizing pure grace, Anugraha.

Panchakritya and the Five Elements

Shiva further links these five cosmic acts with the five great elements:

Srishti – Creation is associated with Earth, the solid basis of forms.
Sthiti – Sustenance is associated with Water, which nourishes and preserves life.
Samhara – Destruction/Transformation is associated with Fire, which burns and transforms.
Tirobhava – Veiling is associated with Air, subtle, invisible, moving, like the play of Maya.
Anugraha – Grace is associated with Space (Ether), the all-pervading field in which liberation is realized.

Now we can see the beautiful symmetry: the five faces of Shiva, the five cosmic acts, the five elements and the five syllables of “Na-Ma-Shi-Va-Ya” all mirror one another. When we chant “Om Namah Shivaya,” we are aligning our inner microcosm with this grand cosmic design.

Om and “Om Namah Shivaya” in Spiritual Practice

From a spiritual standpoint, Om is the doorway to inner silence, and “Om Namah Shivaya” is the path from purification to liberation.

Om as Nādabrahma – The Inner, Unstruck Sound

Sanatan tradition often uses the term “नादब्रह्म – Nādabrahma” for Om: Brahman experienced as sound. This nāda is not a loud, external noise but the subtle, continuous vibration heard within when the mind becomes quiet.

When a seeker slowly chants Om, allowing the sound to begin in the navel, rise through the chest and throat, and finally fade into silence at the crown, the mind begins to settle. Thought-waves subside, and attention naturally turns inward. In that silence after the sound, one can glimpse the presence that is beyond all sounds – the very Self.

“Om Namah Shivaya” as a Path of Inner Purification

Where Om draws the seeker into the silent heart of existence, “Om Namah Shivaya” gives a clear devotional and energetic path. The continuous repetition (japa) of this mantra gradually purifies:

Mind – negative patterns, anxiety and restlessness begin to dissolve.
Karma – the impressions of past actions are slowly lightened.
Subtle body – the centers (chakras) and channels (nāḍīs) are harmonized through the five-elemental power of the syllables.

Over time, the devotee starts to feel an inner closeness to Shiva – not merely as a distant deity, but as the very consciousness shining within. This is why Shaiva texts say that by sincere and regular japa of “Om Namah Shivaya,” the seeker gradually becomes one with Shiva-tattva.

In worldly life, this mantra brings steadiness, positivity and a sense of inner support. Spiritually, it leads toward self-knowledge and liberation.

From Omkar to Moksha: The Complete Journey

Putting it all together, we can understand the journey as described in Shaiva tradition and the Shiva Purana:

Omkar is Shiva’s own sound-form, the root vibration behind the universe. From this Om arise the Vedas, the mantras and all sacred knowledge. Shiva manifests as Panchamukha, the five-faced Lord, performing the five cosmic acts through the five elements. These same five elements are encoded in the five syllables of “Na-Ma-Shi-Va-Ya.”

When a devotee takes refuge in Om and “Om Namah Shivaya” with faith, reverence and regular practice, he or she begins to harmonize with this cosmic design. The elements within are purified, karma is refined, and the inner veil of ignorance (tirobhava) starts to lift. Finally, through Shiva’s grace (anugraha), the devotee can attain moksha – freedom from the cycle of birth and death, resting in the very source from which Om once arose.

Thus, Om is not just the beginning of a mantra we casually utter; it is the beginning and end of the spiritual journey itself. And “Om Namah Shivaya” is not only a sacred chant; it is a living bridge from everyday life to the realization of Shiva within.

Har Har Mahadev! ॐ नमः शिवाय।