Have you ever noticed how a single sound can quiet your mind? Perhaps it was the deep hum of a singing bowl, a mantra sung by many voices together, or the silence that remains after the last note of a beautiful song fades away. In that moment the mind stops running, and something inside you becomes still. The yogis, musicians and mystics of India explored this experience for thousands of years, long before sound baths, singing bowl playlists and healing frequency apps became popular. For them, sound was not only something pleasant to listen to, but a path to health, a doorway into meditation and, at its deepest level, the very fabric of creation. This understanding grew into a complete science of sound known as Nada Yoga, the yoga of sound.
In this article you will discover what Nada Yoga really is, the difference between struck and unstruck sound, the four levels of sound described in the Indian tradition, what classical texts teach about listening within, how ragas were used for healing and what modern research says about them. You will also learn a simple Nada Yoga meditation that you can practise at home. If you are completely new to sound healing, you may like to begin with What Is Sound Healing? A Complete Beginner's Guide, which explains the basics.
What Is Nada Yoga?
The Sanskrit word nada means sound, especially sound that flows and resonates. Nada Yoga is the practice of using sound as a path to inner balance, healing and self-realisation. Where other forms of yoga use the body, the breath or devotion as their main doorway, Nada Yoga uses listening. It begins with the sounds we hear every day and gradually leads the attention towards subtler and subtler sound, until the listener rests in a deep inner silence.
A beautiful explanation of the word comes from the Sangita Ratnakara, a famous 13th-century Sanskrit text on music written by the scholar Sarngadeva. Interestingly, this great book on music does not begin with notes or rhythm, but with nada itself. It explains that the syllable "na" stands for prana, the breath or life force, and "da" stands for agni, the inner fire. Sound, in other words, is born where life force and inner fire meet. This simple idea shows how deeply the Indian tradition connected sound with life, energy and health.
Struck Sound and Unstruck Sound
At the heart of Nada Yoga lies a simple but profound distinction between two kinds of sound. The first is ahata nada, which means struck sound. This is every sound that is created when two things touch, such as a hand on a drum, a stick on a singing bowl, the wind in the leaves or the vocal cords vibrating in your throat. All music, all speech and every sound healing instrument belongs to this category.
The second kind is anahata nada, the unstruck sound. It is described as a subtle inner sound that arises without any physical cause, a vibration that is always present but usually hidden beneath the noise of the world and the mind. The word anahata is also the name of the heart chakra, and many teachers explain that this inner sound is closely connected with the heart. The whole path of Nada Yoga can be seen as a journey from the outer, struck sound towards the inner, unstruck sound.
This is also why Nada Yoga is much more than relaxation. The outer sounds of instruments, voice and mantra are not the final goal, but the support that helps the mind become still enough to hear what lies beyond them. In this tradition, healing happens not only because sound relaxes the body, but because listening deeply brings us back into contact with our own inner source.
The Four Levels of Sound
One of the most fascinating teachings of the Indian tradition is that sound exists on four levels, from the most physical to the most subtle. An ancient verse of the Rig Veda already mentions that speech has four parts, three of which remain hidden while humans speak only the fourth. Later Indian philosophers and teachers gave these levels names, and they have guided practitioners of mantra and Nada Yoga for centuries.
The first level is vaikhari, the sound you can hear with your ears, such as spoken words, music and the sounds of nature. The second is madhyama, the "middle" sound that lives in the mind, like the voice you hear when you think, or a melody that keeps playing in your head. The third is pashyanti, which means "the one that sees", a level where sound is not yet formed into words but exists as an impulse, an image or a feeling. The fourth and deepest level is para, the transcendent sound, the silent source from which all other sound arises.
This teaching offers a useful map for anyone who works with sound. When you chant aloud, you are working on the level of vaikhari. When you repeat a mantra silently, you move into madhyama. When the mantra becomes so subtle that it is more a feeling than a word, you touch pashyanti, and in the deepest silence of meditation, the tradition says, you rest in para. The meditation later in this article follows exactly this journey from outer to inner sound.
Listening Within: What the Hatha Yoga Pradipika Teaches
The Hatha Yoga Pradipika, one of the most important classical texts of yoga, describes a practice called nadanusandhana, which can be translated as "following the inner sound". The text says that the great teacher Adinatha taught countless methods for absorbing the mind, and it praises listening to the inner sound as one of the very best of them. For the authors of this text, sound was not an extra in yoga, but one of its highest meditations.
The Hatha Yoga Pradipika describes how the practitioner sits quietly, gently closes the ears and listens within. At first, it says, the inner sounds may resemble the roar of the ocean, thunder or a large drum. As practice deepens, they become more refined, like a conch, a bell, a flute, a vina or the humming of a bee. The text compares the mind to a bee that drinks nectar and no longer cares for the scent of the flower: once the mind tastes the inner sound, it loses interest in its restless wandering. Whether or not you ever hear such subtle sounds, this image beautifully describes how deep listening calms the mind.
The Unstruck Melody in the Sikh Tradition
The idea of an inner, unstruck sound is not limited to yoga texts. In the Sikh tradition, in which Punnu Wasu grew up, it is known as anahad naad or anahad shabad, the unstruck sound or unstruck melody. The Guru Granth Sahib, the Sikh scripture, speaks of this inner music many times, and its hymns describe a sound that is beyond the range of the ears, yet can be experienced by the soul.
Music is at the very centre of Sikh devotion. The hymns of the Guru Granth Sahib, called shabads, are not only read but sung, and each one is set to a particular raga. When Guru Arjan compiled the scripture, he even arranged its main sections according to musical ragas. Singing these hymns in kirtan is seen as a way to tune the heart to the unstruck melody, so that outer music becomes a bridge to inner silence.
For Punnu, this is not theory but lived experience. He sang kirtan with his father from the age of five, began studying Indian classical music at ten, and later had the honour of performing kirtan at the Golden Temple in Amritsar, the most sacred place of the Sikh tradition. Together with more than 35 years of meditation practice, this living tradition of sound, devotion and listening is one of the deep roots of his approach to sound healing today.
Ragas: Indian Music as Medicine
In Indian classical music, a raga is much more than a scale. Each raga has its own set of notes, its own characteristic movements and, most importantly, its own mood or emotional colour. The word raga is often explained as "that which colours the mind". Musicians traditionally link ragas to particular times of day and seasons, because they believe each raga has the strongest and most harmonious effect when it is played at its proper time. Morning ragas such as Bhairav and Ahir Bhairav are often described as fresh, devotional and awakening, while evening and night ragas carry a calmer, deeper and more introspective mood.
Out of this understanding grew raga chikitsa, which means healing through ragas. The tradition describes how particular ragas were believed to calm the mind, lift low mood or support the body in recovering its balance. In modern India, musicians and researchers have begun to study these ideas. In one small study, listening to Raga Todi was linked with lower anxiety in a group of young women. Another Indian research team reported that people with high or borderline-high blood pressure who listened to Raga Bhimpalas every day for three months showed a significant drop in their blood pressure.
It is important to keep these findings in perspective. Most studies on raga therapy so far are small, and researchers agree that much of the traditional knowledge still needs careful, controlled testing. Ragas are not a replacement for medical treatment. Yet the research suggests that listening to Indian classical music with attention can be a gentle and meaningful support for wellbeing, and it is a wonderful way to bring the spirit of Nada Yoga into everyday life. If you enjoy evening listening, you will find more about night ragas in Sound Healing for Sleep: How to Create a Bedtime Sound Routine That Works.
Beyond Pills: Sound as Daily Medicine
In the Indian tradition, health was never seen only as the absence of disease. Ayurveda and yoga both emphasise daily habits that keep body and mind in balance, so that illness has less chance to develop in the first place. Sound was part of these daily rhythms. People began the day with chanting or prayer, worked to songs and rhythms, and ended the day with devotional music. In this way, sound was a kind of daily medicine, taken in small, regular doses rather than only when something went wrong.
This does not mean that sound healing should replace modern medicine, and the Indian tradition itself valued many forms of treatment. Rather, it invites us to see sound as a natural part of looking after ourselves. A few minutes of listening, chanting or sitting in silence every day can help the nervous system relax, bring the mind back into the present moment and give us a few precious minutes of quiet in a busy day. This is the deeper meaning of going "beyond pills": not rejecting medicine, but adding a simple, ancient practice that supports health from within.
A Nada Yoga Meditation: The Four Levels of Sound
This gentle meditation follows the four levels of sound described above, from outer listening to inner silence. You need about fifteen minutes and a quiet place where you will not be disturbed. Sit comfortably on a cushion or a chair with your back upright but relaxed, close your eyes and take a few slow breaths to arrive.
Begin with the outer sounds, the level of vaikhari. For three to four minutes, simply listen to everything around you, such as birds, traffic, the wind, voices or the hum of the house. Try not to name or judge the sounds. Notice the closest and the most distant sound, and let your hearing become wide and open, as if you were hearing the world for the first time. Then, for the next three to four minutes, move into the level of madhyama. Choose a simple, peaceful sound or word, such as the word "peace" or a short mantra you love, and repeat it silently in your mind. Listen to it inside, as if you were hearing it rather than saying it.
Now let the inner repetition become slower and softer, until it is more a feeling than a word. This is the gentle doorway to pashyanti. Stay with this feeling for a few minutes, and if the word disappears completely, allow it to go. For the last few minutes, if you wish, you can rest your thumbs very lightly on the small flaps in front of your ear openings, close off outer sounds gently, and simply listen to whatever you notice inside, perhaps a soft hum, a subtle ringing, the sound of your breath or simply silence. This is the traditional practice of listening within, and whatever you hear, or do not hear, is perfectly fine.
To finish, slowly release your hands, rest them in your lap and sit in silence for a minute. Notice how your body and mind feel now compared with when you began. Never press on your ears or strain to hear anything. If you have tinnitus or an ear condition, skip the final stage with closed ears and simply rest in silence with your hands in your lap, as focusing on ringing in the ears can make it more noticeable for some people.
How to Bring Nada Yoga into Your Daily Life
Nada Yoga does not have to be a long meditation. It can become a way of living with more awareness of sound. You could start your day by listening to a morning raga for ten minutes with a cup of tea, instead of switching on the news. You could pause a few times a day to listen to your surroundings for one minute, letting sound bring you back into the present moment. And you could notice how different sounds affect your mood, choosing more of the sounds that nourish you and fewer of the sounds that drain you.
Your own voice is also a powerful part of Nada Yoga. Chanting, singing and kirtan all use struck sound in the body as a bridge to inner stillness. To understand how chanting works on the body and mind, you can read How Do Mantras Work?, and to discover the joy of singing mantras together with others, Kirtan for Beginners is a lovely next step.
Frequently Asked Questions About Nada Yoga
What is the difference between Nada Yoga and a sound bath?
A sound bath is usually a session in which you lie down and receive the sounds of instruments such as singing bowls and gongs. Nada Yoga is a much older and broader spiritual path that uses all forms of sound, including listening, chanting, music and silent inner sound, as a way to still the mind and turn the attention inwards. A sound bath can be a beautiful experience within the spirit of Nada Yoga, but Nada Yoga goes further by teaching you to listen inwardly.
Do I need to be musical to practise Nada Yoga?
No musical training is needed. Nada Yoga is first of all the yoga of listening, and everyone who can listen can practise it. Many practices, such as listening to the sounds around you or repeating a word silently, need no voice or instrument at all. If you enjoy singing, chanting or playing music, these can deepen your practice, but they are never a requirement.
Is Nada Yoga a religious practice?
Nada Yoga comes from the spiritual traditions of India, and many people practise it as part of their spiritual life. However, its core practices of listening, chanting and sitting in silence can be enjoyed by people of any background or belief. You do not need to adopt any religion to benefit from deep listening and inner stillness.
What is anahata nada, the unstruck sound?
Anahata nada is described in the yoga traditions as a subtle inner sound that arises without any physical cause, in contrast to ahata nada, the struck sound of instruments and voices. In the Sikh tradition it is known as anahad naad, the unstruck melody. It is understood less as a sound you hear with your ears and more as a deep inner vibration that becomes noticeable when the mind is very still.
Can ragas really heal?
Indian tradition has long used ragas to calm the mind and support wellbeing, and some small modern studies have found positive effects, for example on anxiety and blood pressure. However, the research is still at an early stage and many studies are small. Listening to ragas can be a gentle support for health and wellbeing, but it should never replace medical care.
Can Nada Yoga replace medicine?
No. Nada Yoga and sound healing are complementary practices that support wellbeing alongside a healthy lifestyle and, where needed, medical or psychological treatment. Their strength lies in daily practice that helps you relax, reconnect and stay in balance, not in replacing the care of your doctor.
Return to the Sound Within
The ancient teachers of India discovered something that modern life has made easy to forget. Beneath all the noise of the world and the endless voice of the mind, there is a quieter sound and a deeper silence that are always available. Nada Yoga is simply the art of listening for them, starting with the sounds around you and moving gently inwards, one level at a time.
If you feel called to explore this path more deeply, Punnu Wasu's annual Sound Healing Training at The Yoga Barn in Ubud brings together Nada Yoga, voice work, mantra and practical work with sound healing instruments. For today, the first step is simpler. Close your eyes for one minute, listen to every sound around you, and then listen a little deeper.