The most useful thing about nadis isn't the count. Yogic texts speak of 72,000 of these subtle channels, sometimes far more — but the number is a way of saying the body is woven through with movement, not a map you'll ever finish drawing. What the tradition offers is gentler and more practical: a language for paying attention to your own breath, and a handful of quiet practices to go with it.
This piece walks through what nadis are, where the idea comes from, and how the three main channels — Ida, Pingala, and Sushumna — sit at the centre of it. We'll lead with the practices, because that's the part you can actually do, then place them inside the older framework they belong to.
What nadis are: a map of the breath, not the body
The Sanskrit word nadi means tube, channel, or flow. In the yogic tradition it names a subtle pathway through which prana — life-force, or breath-energy — is said to travel. You won't find a nadi on a scan. They aren't anatomical structures; they're a contemplative map the tradition uses to describe how energy and attention move through a person.
That distinction matters. Held as biology, the idea collapses. Held as a framework for self-awareness, it's quietly useful — a way of noticing your breath, your state, and the difference a few slow minutes can make. It sits alongside other traditional maps, like the meridians of Traditional Chinese Medicine, as a poetic language for things people have long felt rather than measured.
The texts are not tidy about the numbers, and that's part of the picture. The Hatha Yoga Pradipika and the Goraksha texts give 72,000 nadis; the Shiva Samhita counts 350,000 arising from the navel centre. Out of these, the tradition singles out fourteen as principal, and three above all: Ida, Pingala, and Sushumna.
Simple practices to clear your nadis
This is where nadis earn their place — not as anatomy, but as a frame for a steadying daily practice. None of it requires anything but your breath and a few quiet minutes. Some people find a small ritual helps them return to it, and we'll point to those gently as we go.
A useful way to begin is to mark the threshold. Some people like letting a sound settle the room before you begin — a single struck bowl or bell that gives the mind something steady to land on. Others reach for marking the start of your breathing practice with a single incense stick, a quiet cue that this is the part of the day that belongs to you.
A gentle caution first. Practise on an empty stomach or after a light meal, sit with a straight, comfortable spine, and start short. If you feel light-headed at any point, stop, let the breath return to normal, and rest. Consistency does the work here — not force, and not chasing a dramatic state.
Nadi Shodhana — alternate nostril breathing
Nadi Shodhana is the classic channel-clearing breath; the Gheranda Samhita calls it a cleanser. What most people actually notice is more immediate and grounded: a slower breath, a quieter mind, a sense of having stepped off the treadmill for ten minutes.
Here is one way to practise it:
- Sit comfortably with a straight spine, on an empty stomach.
- Use your right thumb to close the right nostril, your ring finger for the left.
- Close the right nostril and breathe in slowly through the left.
- If it's comfortable, pause briefly.
- Close the left nostril and breathe out through the right.
- Breathe in through the right, pause, then close it and breathe out through the left.
- That's one round. Continue at an easy rhythm.
Five to ten minutes is plenty to begin with. A straight spine asks for a comfortable seat — and a comfortable seat is the whole point of a comfortable seat so you'll sit again tomorrow. The difference between sitting and sitting comfortably is small, but it's the one that decides whether you come back.
Yoga poses to support the flow
A few simple poses pair well with the breathwork, settling the body before you sit:
Rocking forward fold. Feet hip-width apart, knees bent deeply, belly resting on the thighs. Clasp opposite elbows and take three to five slow breaths.
Loose-arm twist. Stand with feet a little wider than hip-width. Let the arms hang, then sway side to side, twisting gently at the waist so the arms swing of their own accord.
Grounded standing pose. Stand tall and root down through all four corners of each foot. A plain, steadying shape to finish on.
Visualisation and mantra
Meditation rounds out the practice. During alternate nostril breathing, you can picture light moving down one side of the spine as you breathe in, gathering quietly at the base while you pause, then rising up the other side as you breathe out. It's a focus for attention, nothing more — but a good one.
A mantra gives the mind a steady thread to follow. Two common ones are Sat Naam and Sa Ta Na Ma, repeated in cycles across the breath. This is where keeping count of a mantra like Sat Naam or Sa Ta Na Ma on a 108-bead mala helps — one bead per repetition keeps the tally by touch, so your attention stays on the breath rather than the counting.
Many people like anchoring the breath with a calming aroma as well — a single familiar scent that, over time, becomes a cue for the mind to settle. Used this way, it's part of the ritual, not a remedy.
The three main nadis
The tradition keeps returning to three channels, said to begin near the base of the spine.
Ida — the moon channel
Ida, the chandra or moon channel, is described as flowing up the left side of the spine. It's the cooling, receptive side — associated with stillness, intuition, and rest. In the tradition, a freely flowing Ida is spoken of in terms of mental quiet and ease rather than any physical outcome.
Pingala — the sun channel
Pingala, the surya or sun channel, runs up the right side. It's the warming, active side — associated with energy, focus, and engagement with the day. Where Ida is the receptive note, Pingala is the forward one.
Sushumna — the central channel
Sushumna runs straight up the centre of the spine, from the base toward the crown, threading through the seven main chakras as it goes. The teaching is simple and steadying: when the active and receptive sides come into balance, the centre opens. Ida and Pingala are pictured wrapping around Sushumna, crossing at the energy centres and meeting at the brow — the point the tradition calls the third eye. You don't have to take any of it literally to find the image a calm one to hold.
How nadis connect with your chakras
In this map, the nadis and the chakras belong together — the channels are the roads, the chakras the junctions where several roads meet. The three main nadis are said to begin at a single point at the base of the spine, weave upward, and meet again near the brow, at the Ajna chakra, where the receptive and active sides come into balance.
Because the article's whole frame ties the channels to the seven centres they thread through, this is the natural place to bring attention to each one in turn. A set of tumbled stones — one per centre — gives a hands-on way to do that during a seated practice, held simply as a focus rather than a cure; this is the web where nadis meet your chakras, and a quiet way to explore it. The breath offers its own small marker, too: even, balanced airflow through both nostrils is traditionally read as a sign of an open central channel.
From root to crown, Sushumna is described as reaching toward Sahasrara — the crown the central channel reaches toward — completing the line the whole map is drawn around.
Where the idea comes from
The nadi concept is an old one, first appearing in early Hindu texts. The Chandogya Upanishad, usually dated to around the 8th–6th century BCE, describes these channels in a much-quoted line: "A hundred and one are the arteries of the heart, one of them leads up to the crown of the head." A 16th-century text, the Sat-Cakra-Nirupana (c.1577), later refined the picture and named the three main nadis as Sasi, Mihira, and Susumna.
Several other texts shaped the tradition: the Shandilya Upanishad set out the idea of fourteen principal nadis, the Darshana Upanishad detailed how Susumna relates to the channels around it, and the Shiva Samhita gave the figure of 350,000.
Echoes in other traditions
Similar ideas of energy in motion appear elsewhere. The Chinese notion of qi moving through meridians rhymes with prana flowing through nadis. Thai massage, for its part, has its own founding legend: it credits Jivaka Komarabhacca (also rendered Shivago Komarpaj), said to be a physician at the time of the Buddha, with the Sen lines — traditionally counted at 72,000, with ten of them, the Sip Sen, used in practice. As with much of this material, the founder's historicity is debated; it's best held as legend rather than record.
One note on names, since the word travels. Tamil tradition also has a "Nadi" — Nadi astrology, the palm-leaf reading associated with the siddhars and preserved on olai chuvadi manuscripts. That is a separate, predictive practice that simply shares the word; it is not the heritage of the subtle-body channels described here, and SHAMTAM doesn't frame anyone's future as already written on a leaf. We mention it only to keep the two apart.
What the tradition says about blockages
Here it's worth being careful with language. In the tradition, practitioners describe channels becoming "blocked" by stress, tension, or an unsettled life, and speak of practice as a way to encourage a sense of calm and balance. That is how the tradition talks — experientially, in its own terms. It is not a diagnostic system, and we'd never present it as one: nadis don't determine your immunity, your digestion, or your mood, and no breath practice should replace medical care when you need it.
What people do tend to report from a steady breathwork practice is more modest and more honest — a little more ease, a quieter head, a sense of having gathered themselves. That's reason enough to practise.
A note on "the science"
It's tempting to dress old practices in laboratory language, and a lot of writing does. We'd rather be straight with you. There is no study that shows subtle energy channels exist as physical structures, and the literature on traditional pulse assessment is candid that its link to modern measures "has not been studied" and remains subjective.
What is genuinely interesting is narrower. Researchers have observed that breathing through one nostril can shift activity toward the opposite side of the brain, and that different nostril patterns are associated with measurable changes in things like blood pressure — a tidy parallel to the old idea of Ida and Pingala as cooling and warming. Hold it lightly: it's an interesting echo, not a proof of the map. The real takeaway is the practical one. A slow, deliberate breath is a well-studied way to influence the nervous system, and the nadi tradition gives you a beautiful, doable way to practise it.
Building a practice you'll keep
A few minutes most days teaches more than an occasional long sitting. Begin short, practise on an empty stomach, and lengthen the sessions only as they start to feel natural. The aim isn't a dramatic state — it's the spacious, grounded state these practices point toward, arrived at quietly and on your own terms.
Small rituals help the habit stick. Some people enjoy building a small daily ritual around scent — the same incense or oil each time, so the senses learn the cue. And a session is often best closed the way it began: gently — resting your eyes after a session for a minute or two lets the quiet settle before you stand and rejoin the day.
Worked with this way, nadis stop being a piece of mysterious anatomy and become what they were always most useful as: a calm, time-worn frame for the simple act of sitting down and breathing well. The practice is yours. The objects only hold the door open.
