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Pranayama guide

Surya Bhedana & Chandra Bhedana: Single-Nostril Breathing

The solar and lunar breaths of the Hatha Yoga Pradipika — surya bhedana warms and energizes through the right nostril (pingala nadi), while chandra bhedana cools and calms through the left (ida nadi). Unlike anulom vilom, each uses a single fixed nostril for inhalation.

Close-up of a student practicing Nadi Shodhana with the right hand at the nose, eyes closed, in Rishikesh
In the shala, Lower Tapovan, Rishikesh

Quick Answer

Surya bhedana is single-nostril breathing that always inhales through the right nostril (the solar, pingala channel) and exhales through the left — heating and energizing. Chandra bhedana reverses it: inhale left (the lunar, ida channel), exhale right — cooling and calming. Both are taught in the Hatha Yoga Pradipika.

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What Are Surya Bhedana and Chandra Bhedana?

The names come from Sanskrit: "surya" means sun, "chandra" means moon, and "bhedana" means piercing or activating. Surya bhedana ("sun-piercing breath") and chandra bhedana ("moon-piercing breath") are a complementary pair of single-nostril pranayamas that work by deliberately activating one of the two principal energy channels of the subtle body: pingala, the heating solar nadi associated with the right nostril, and ida, the cooling lunar nadi associated with the left. In yogic physiology these two nadis spiral around the central sushumna channel, and their relative activity is reflected in which nostril is dominant at any given moment.

In surya bhedana you inhale only through the right nostril and exhale only through the left, drawing prana up the pingala (solar) channel. Because pingala governs heat, activity, digestion, and the sympathetic drive, surya bhedana is warming, stimulating, and energizing. Chandra bhedana is its mirror image: you inhale only through the left nostril and exhale only through the right, drawing prana up the ida (lunar) channel. Because ida governs coolness, rest, and the parasympathetic response, chandra bhedana is cooling, soothing, and calming.

Both breaths are described in the Hatha Yoga Pradipika, where surya bhedana appears among the principal kumbhakas — traditionally practised with breath retention (kumbhaka) and jalandhara bandha (the chin lock) to intensify its heating effect and its power to "cleanse the skull" and destroy conditions of excess wind (vata). Chandra bhedana is taught as its cooling counterpart. Because they intentionally push the practitioner toward one polarity — heat or cold, activation or sedation — they are targeted practices rather than everyday balancing ones, and are best learned progressively under guidance.

How They Differ from Anulom Vilom & Nadi Shodhana

The crucial distinction is the nostril pattern. Anulom vilom and nadi shodhana are alternating breaths — they switch the inhaling nostril every round so that, over a full cycle, both nostrils receive equal inhalation. Their purpose is balance: harmonising ida and pingala so prana can flow evenly. Surya bhedana and chandra bhedana do the opposite. Each uses a single fixed nostril for every inhalation throughout the practice, deliberately loading one channel to shift the body toward heat or cold.

In other words, if anulom vilom and nadi shodhana are about equilibrium, surya bhedana and chandra bhedana are about intentional imbalance for a specific effect. This is why they are chosen for a purpose — surya bhedana to warm a cold, sluggish, or low-energy state, and chandra bhedana to cool an overheated, agitated, or restless one — rather than practised indiscriminately every day. Understanding this difference is the key to using single-nostril breathing safely.

New to nostril-based breathing? Master the balancing, retention-free version first with Anulom Vilom and then the retention-based purification of Nadi Shodhana.

How to Practise Surya & Chandra Bhedana: Step-by-Step

The two breaths share the same technique — only the fixed inhaling nostril changes. Practise on an empty stomach in a clean, well-ventilated space, and choose surya bhedana when you need warmth and energy, chandra bhedana when you need cooling and calm.

  1. Sit in a stable meditative posture

    Sit in Sukhasana, Padmasana, or Siddhasana with the spine erect, or use a chair with your feet flat on the floor. Align the head, neck, and spine so the breath moves freely, rest the left hand on the left knee in Jnana Mudra, and take a few natural breaths to settle the mind and body.

  2. Form Vishnu Mudra with the right hand

    Fold the index and middle fingers of the right hand toward the palm (or rest them lightly at the third-eye centre). The thumb will control the right nostril, and the ring finger (with the little finger) will control the left. Keep the hand relaxed and the elbow low so the shoulder does not tense.

  3. For surya bhedana, inhale through the RIGHT nostril

    Close the left nostril with the ring finger. Inhale slowly, smoothly, and completely through the right nostril (the solar, pingala channel) for a comfortable count of four. Keep the inhalation silent and even, filling the lungs from the base upward without strain. This right-nostril inhalation is what makes the breath heating.

  4. Optionally retain the breath (kumbhaka)

    Once the basic rhythm is comfortable, close both nostrils and hold the breath in for a short, steady count — beginners four to eight counts, experienced practitioners longer. Traditionally surya bhedana is held with jalandhara bandha (chin lock). Never force retention; if you feel any urge to gasp, shorten or omit the hold entirely.

  5. Exhale through the LEFT nostril

    Keeping the right nostril closed with the thumb, lift the ring finger and exhale slowly and completely through the left nostril, aiming for an exhale about twice the length of the inhale. The exhalation should be quiet and unhurried, emptying the lungs fully. This completes one round of surya bhedana.

  6. Repeat with the same fixed nostril

    For surya bhedana, always inhale right and exhale left — do NOT alternate. Continue for five to ten rounds, gradually building over weeks. Because it is heating, stop if you feel overheated, and never practise it in already hot conditions or with a fever.

  7. For chandra bhedana, simply reverse the sides

    To practise the cooling chandra bhedana, mirror every step: inhale only through the LEFT nostril (the lunar, ida channel), optionally retain, then exhale only through the RIGHT. Keep this fixed pattern throughout — inhale left, exhale right — for five to ten rounds. When finished, release the hand, return to natural breathing, and sit quietly for a minute before opening the eyes.

Benefits of Surya Bhedana & Chandra Bhedana

  • Surya: Boosts Energy & Vitality

    By activating the solar pingala channel, surya bhedana is warming and stimulating — traditionally used to lift a dull, sluggish, or low-energy state and increase alertness and drive.

  • Surya: Stimulates Digestion

    The heating effect is said to kindle agni (the digestive fire), supporting metabolism and digestion, which is why surya bhedana is often chosen for cold-natured or vata-dominant constitutions.

  • Surya: Sharpens Focus & Warmth

    The activating, sympathetic quality of the right-nostril breath supports mental alertness and concentration, and generates internal heat that can help counter cold, damp, or lethargic conditions.

  • Chandra: Cools the Body & Mind

    By activating the lunar ida channel, chandra bhedana is cooling and soothing — a natural counter to overheating, excess pitta, and the heat of summer or an agitated system.

  • Chandra: Calms & Reduces Stress

    The left-nostril breath is traditionally used to settle mental agitation, and many students feel quieter and more settled afterwards. It is not a treatment for anxiety.

  • Chandra: Supports Restful Sleep

    Because it soothes an overactive mind and cools the system, chandra bhedana is often practised in the evening to prepare the body and mind for deep, restful sleep.

  • Conscious Control of Ida & Pingala

    Practised together, the pair teaches you to consciously shift your inner state — warming when you are cold and heavy, cooling when you are hot and restless — a foundational skill in yogic self-regulation.

  • Balances the Autonomic Nervous System

    Surya bhedana engages the activating sympathetic branch while chandra bhedana engages the restful parasympathetic branch, giving the practitioner a precise tool for either arousal or relaxation.

Precautions: Who Should Avoid Surya & Chandra Bhedana

Because these breaths deliberately push the body toward heat or cold, choosing the wrong one for your condition can aggravate it. Observe these precautions, and practise any retention only when the basic rhythm is comfortable:

  • High blood pressure or heat conditions — avoid surya bhedana: Surya bhedana is heating and, with retention, can transiently raise blood pressure. Those with uncontrolled hypertension, heart disease, fever, hyperacidity, or any pitta/heat-aggravated condition should avoid surya bhedana and favour the cooling chandra bhedana instead.
  • Low blood pressure, cold conditions or depression — avoid chandra bhedana: Chandra bhedana is cooling and sedating. Those with low blood pressure, chronic cold, sluggish digestion, seasonal or clinical depression, or heavy, lethargic (kapha) states should avoid chandra bhedana and favour the warming surya bhedana instead.
  • Pregnancy: Pregnant women should avoid breath retention entirely and are best served by gentle balancing breaths under a qualified prenatal teacher rather than by strongly heating or cooling single-nostril practices.
  • Respiratory illness: During asthma flare-ups, colds, or other active respiratory conditions, skip the retention and keep the breath free and unforced until you have fully recovered.
  • Beginners forcing retention or the wrong breath: Never extend kumbhaka quickly, and do not practise a heating or cooling breath that opposes your current state. When in doubt, learn the balancing anulom vilom first and add single-nostril work only under experienced guidance.

When to Practise Surya & Chandra Bhedana

Match the breath to the time and the need. Surya bhedana, being warming and energizing, is best practised in the morning on an empty stomach — it helps dispel morning sluggishness, kindles digestion, and brings alertness for the day ahead. Because it is stimulating, it is not suited to the hours before sleep.

Chandra bhedana, being cooling and calming, is ideally practised in the evening or before bed, when its soothing effect helps release the heat and tension of the day and prepares the mind for rest. It is also valuable during hot weather or whenever the body or mind feels overheated. Whichever you choose, allow at least three to four hours after a heavy meal, sit in a clean and well-ventilated space, and keep the practice consistent.

Frequently Asked Questions About Surya & Chandra Bhedana

What is the difference between surya bhedana and chandra bhedana?

The difference is which single nostril you inhale through, and therefore which effect you produce. In surya bhedana you inhale only through the right nostril (the solar, pingala channel) and exhale through the left — this is heating, activating, and energizing. In chandra bhedana you inhale only through the left nostril (the lunar, ida channel) and exhale through the right — this is cooling, soothing, and calming. Both use a single fixed inhaling nostril throughout the practice; only the side is reversed.

Surya vs chandra bhedana — which one should I practise?

Choose based on the state you want to change. Practise surya bhedana when you feel cold, sluggish, low on energy, or have weak digestion, and when you need warmth and alertness — ideally in the morning. Practise chandra bhedana when you feel overheated, agitated, restless, or anxious, and when you need to cool down and calm the mind — ideally in the evening. Avoid surya bhedana with high blood pressure or heat conditions, and avoid chandra bhedana with low blood pressure, cold conditions, or depression.

Is surya bhedana the same as anuloma viloma (anulom vilom)?

No. Anuloma viloma (anulom vilom) and nadi shodhana are alternating breaths — they switch the inhaling nostril every round so both nostrils are used equally, producing balance. Surya bhedana uses only the right nostril for every inhalation, and chandra bhedana only the left, deliberately loading one channel to create heat or cold. So while all four are nostril-based pranayamas, the alternating breaths balance ida and pingala, whereas surya and chandra bhedana intentionally favour one of them.

What do the Hatha Yoga Pradipika and ida/pingala have to do with these breaths?

In yogic physiology, ida is the cooling lunar nadi linked to the left nostril and pingala is the heating solar nadi linked to the right nostril, both spiralling around the central sushumna channel. The Hatha Yoga Pradipika lists surya bhedana among its principal kumbhakas, practised with retention and the chin lock (jalandhara bandha) to generate heat and cleanse the system, with chandra bhedana as its cooling counterpart. Working these two breaths is a direct, scripturally grounded way to influence the ida and pingala flow.

Can beginners practise surya bhedana and chandra bhedana?

The single-nostril breathing pattern itself is simple, but because these breaths push the body strongly toward heat or cold — and are traditionally practised with breath retention — beginners should first become comfortable with balancing breaths such as anulom vilom. Start without any retention, keep the sessions short (five to ten rounds), choose the breath that suits your current state, and add kumbhaka only gradually and, ideally, under the guidance of an experienced teacher.
Five students practice Nadi Shodhana alternate nostril breathing in a Rishikesh pranayama class

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