Sanskrit, the Endless Sound

In Sanskrit, the word for a letter is akṣara. It also means "that which does not perish". This is the story of a language built on that idea, and of what happens when its sounds become mantra.

A letter that cannot die

Write a word on paper and the ink fades. Say it aloud and the air goes still again. Everything about sound seems temporary.

Sanskrit disagrees. Its word for a syllable or letter, akṣara (अक्षर), is built from a-, "not", and kṣara, "flowing away, perishing". A letter is the imperishable. The sound you hear fades; the sound itself, the tradition says, never began and never ends.

That is not poetry added later. It sits at the foundation of Indian thought about language, and it explains why Sanskrit was guarded for three thousand years mostly by the human voice. For much of that time, the Vedas were not read. They were recited, syllable by syllable, teacher to student, with methods so precise that UNESCO recognises Vedic chanting as part of the world's intangible heritage.

The sound you hear fades. The sound itself, the tradition says, never began and never ends.

The Word without beginning or end

Around the 5th century, the grammarian-philosopher Bhartṛhari opened his great work on language with a single line that names this "endless sound".

Śabda-brahman, Brahman as sound, became one of the deepest ideas in Indian spirituality. Tantra calls the same reality nāda, the primordial vibration, and yogis speak of anāhata nāda, "the unstruck sound": a sound not made by anything striking anything, heard in deep meditation. The heart chakra takes its name from it.

The four levels of speech

Far older still, a hymn of the Ṛg Veda says something remarkable about speech.

Later teachers gave the four levels names. Bhartṛhari described three; the Kashmir Shaiva tradition, through Abhinavagupta, completed the four:

• Parā, the supreme: speech as pure, silent consciousness, before any thought.
• Paśyantī, "the seeing": meaning as a whole flash of insight, not yet divided into words.
• Madhyamā, "the middle": the inner voice, words forming in the mind.
• Vaikharī, the spoken: sound in the air, the only quarter we usually notice.

A mantra, in this view, is a way of travelling back up the ladder: from the spoken sound, to the inner sound, to the silent source it came from.

An alphabet built like the body

Most alphabets are arranged by accident of history. A, B, C follows no logic of the mouth. The Sanskrit alphabet, the varṇamālā or "garland of letters", is arranged by where in the body each sound is made, starting deep in the throat and moving forward to the lips.

• Throatkaṇṭhyaअ आ क ख ग घ ङ हa ā · ka kha ga gha ṅa · ha
• Palatetālavyaइ ई च छ ज झ ञ य शi ī · ca cha ja jha ña · ya · śa
• Roof of the mouthmūrdhanyaऋ ॠ ट ठ ड ढ ण र षṛ ṝ · ṭa ṭha ḍa ḍha ṇa · ra · ṣa
• Teethdantyaऌ त थ द ध न ल सḷ · ta tha da dha na · la · sa
• Lipsoṣṭhyaउ ऊ प फ ब भ मu ū · pa pha ba bha ma

Within each group, the letters go from unvoiced to voiced, from plain to breathy, and end with the nasal. Say ka, kha, ga, gha, ṅa slowly and you can feel the sound gathering, opening, and finally humming in the head. Linguists still admire it: an alphabet that is also a map of the mouth.

What each letter represents

Here we move from linguistics into the inner traditions. What follows are teachings, not scientific claims, and different lineages read the letters in different ways. Three of the most important:

1. The "little mothers" of Kashmir Shaivism

The Shiva Sutras say jñānādhiṣṭhānaṃ mātṛkā (1.4): "Mātṛkā is the ground of limited knowledge." Mātṛkā means "little mother". The letters are the mothers of every word, and so of every thought we can have about the world. When we don't see them clearly, they bind us; when we do, they reveal the consciousness they come from.

In Abhinavagupta's teaching, the vowels are the powers of Shiva himself, unfolding one into the next:

• अaanuttara: the Unsurpassable: Shiva, pure consciousness
• आāānanda: bliss, consciousness delighting in itself
• इiicchā: will, the first stirring of desire to create
• ईīīśana: mastery, will becoming sovereign
• उuunmeṣa: opening, the power of knowing
• ऊūūnatā: lessening, knowledge narrowing towards objects

The consonants then stand for the levels of manifestation, the tattvas, all the way down to solid earth. The alphabet becomes a description of creation: consciousness stepping down, letter by letter, into matter.

2. The letters on the petals of the chakras

In the yogic texts on the chakras, such as the Ṣaṭ-cakra-nirūpaṇa, the fifty letters are placed on the petals of the six chakras, and each chakra has its own seed sound (bīja).

Four, six, ten, twelve, sixteen and two: fifty letters in all. The body, in this vision, is literally written in Sanskrit.

3. Kali's garland

Kali is often shown wearing a garland of fifty severed heads. Many teachers, and Sir John Woodroffe's classic The Garland of Letters, read them as the fifty letters: the Mother wearing every sound, every name and every concept as her ornament, beyond all of them.

How mantras create vibration

This is where most writing on mantras goes wrong: it mixes what the tradition teaches with what science has measured, and adds things neither says. So here they are, side by side.

I find the honest picture more beautiful than the myths. You don't need NASA to tell you a mantra works. Sit and chant for ten minutes and notice your breath, your heartbeat and the quality of the silence afterwards. That is the experiment the tradition has always offered.

My reflection: the sound behind the movie

This section is my own reading, not part of the texts quoted above.

In the Projector Theory, your life is the light of Source passing through a reel of imprints and appearing on the screen. The four levels of speech describe the same journey in sound. Parā is the lightbox: silent, whole, unchanging. Paśyantī is the first image on the reel, a meaning before it has words. Madhyamā is the running commentary of the mind. Vaikharī is the movie playing out loud.

Most of us live entirely at the level of vaikharī and madhyamā: what we say, and what we keep saying to ourselves. Our samskaras are made of exactly that inner speech, the same sentences replaying for years. A mantra replaces the loop with one clean sound, and then lets even that sound fall back into silence. You stop fighting the movie. You go back to the light.

How it can help

What the texts say

Bhartṛhari's line says the world itself unfolds from the endless Word. The Ṛg Veda says three quarters of speech lie hidden in the heart. The Shiva Sutras say the letters bind us when unseen and free us when understood. In their own words, sound is not only how we describe reality. It is a way back to its source.

How the tradition uses it

• Japa, the repetition of a mantra, often with a mala of 108 beads, to steady the mind.
• Bīja mantras on the chakras, to bring attention to each centre of the body.
• Nāda yoga, listening inward for subtler and subtler sound until only silence remains.
• Recitation of whole texts, like the Kala Bhairava Ashtakam, where meaning and rhythm work together.

What the practice does

Chanting slows and lengthens the breath, gives scattered attention one place to rest, and replaces the mind's habitual inner speech with a single sound. For many people this supports calm and focus, and the small studies above point in the same direction.

Chanting and meditation are spiritual and reflective practices. They may support calm and wellbeing, but they are not medical or psychological treatment and do not replace professional care.

A practice: from throat to lips

1. Sit upright and take three slow breaths.
2. Sing a long a ("ah") and feel it in the throat and chest.
3. Move to u ("oo") and feel the sound travel forward to the lips.
4. Close the lips into m and feel the hum fill your head.
5. Join them: a-u-m, one long breath, the whole alphabet's journey in one syllable. Repeat nine times.
6. Then stop and listen. The silence afterwards is the fourth part of Om, and the most important.

Practise for 21 days, at the same time each day, and notice what changes in the silence.

Sources and a note on accuracy

The Sanskrit verses were checked word by word against published editions. Translations are my own, following the scholars below. Where I describe what the letters "represent", I'm describing spiritual traditions, which vary between lineages. Where I describe science, I've cited the original studies and their size.

• Bhartṛhari, Vākyapadīya 1.1; text from Vākya Vallarī
• Ṛg Veda 1.164.45; text from VedaPath
• Jaideva Singh, Śiva Sūtras: The Yoga of Supreme Identity and Parā-trīśikā-vivaraṇa (Motilal Banarsidass)
• Sir John Woodroffe, The Garland of Letters and The Serpent Power (on the Ṣaṭ-cakra-nirūpaṇa)
• Weitzberg and Lundberg, "Humming greatly increases nasal nitric oxide", Am J Respir Crit Care Med 166 (2002): 144–5 (PubMed)
• Bernardi et al., "Effect of rosary prayer and yoga mantras on autonomic cardiovascular rhythms", BMJ 323 (2001): 1446 (BMJ)
• Kalyani et al., "Neurohemodynamic correlates of 'OM' chanting: a pilot fMRI study", Int J Yoga 4 (2011) (DOAJ)
• Fact check on the "NASA Om" video: BOOM
• Rick Briggs, "Knowledge Representation in Sanskrit and Artificial Intelligence", AI Magazine 6.1 (1985)

Return to the sound

Every word you have ever spoken came from silence. A mantra is a way of walking back.

Timeless Teachings shares sacred texts and ideas for study and reflection, with respect for the traditions they come from. Meditation and mantra practice support reflection and wellbeing; they are not medical or psychological treatment and do not replace professional care.