LESSON 4/20 · POSITION & BREATH

Only a right position breathes well: why a rounded back and hunched shoulders cannot take a deep breath

You tell a student “breathe in deeply!” and their ribcage does not budge? Very likely the fault is not in the breath — it is in the frame holding the breath. The breath is the guest; the position is the room. A cramped room and the guest cannot get in. This lesson shows you that room, and how to make it bigger before you ask anyone to breathe deeply.

1 THE RIBCAGE IS THE “BOX” THE LUNGS SIT IN

To understand a shallow breath, look at the box first — not at the two lungs.

The rib cage as a box around the two lungs — The ribcage: ribs all around, the spine holding it from behind, the breastbone across the front, the diaphragm closing it underneath.

REMEMBERThe lungs only open as far as the box opens

The lungs cannot inflate themselves — they are two soft bags sitting inside a box. That box is the ribcage: ribs wrapping round all four sides, the spine holding it from behind, the breastbone across the front, the diaphragm like a floor closing it underneath. However far the box opens, that is how much room the lungs have to expand into.

GRASP THISThe ribcage is a room

Tuấn Anh often likens the ribcage to a room: the bigger the room, the more freely you can move inside it. Whether a breath is deep or shallow is mostly decided by whether that room is open or squeezed shut — not by how much harder you “try”.

On the mat: Put one hand on the breastbone and one on the side ribs. Breathe in slowly and feel the box open under both hands — before you even think about “breathing deeply”.

2 WHY A ROUNDED BACK AND HUNCHED SHOULDERS CANNOT BREATHE DEEPLY

A rounded back, hunched shoulders, a dropped chin — all three are squashing the box.

A rounded back compared with a long back and an open chest — The same person: rounded, the box closes; lengthened, the box opens. The room the lungs get is entirely different.

REMEMBERSquash the box and the breath cannot get in

Try it where you are: round the back, roll the shoulders forward and hunch — you will feel the ribcage narrow and the breath go shallow by itself; however much you want to breathe deeply, it will not go in. That is because the box is squashed: the diaphragm has no room to drop, and the ribs cannot open fully. Someone forcing a hard breath in that position only gets a tight chest and fatigue, with the breath still short.

GRASP THISWhy habit keeps the box permanently “shut”

The thoracic spine already curves forward a little by nature. When things go out of balance — a lot of sitting, a habit of rounding — it rounds further, pulling the ribcage closed and keeping it there all day. The muscles along the spine are held long and go weak, while the front of the chest closes tight. The box stays “shut”, so the breath gets used to being shallow.

On the mat: Take one breath rounded and hunched; then sit long through the back with the chest open and breathe again. Remember that difference in your own body — it is exactly what your students are living with.

3 WHAT A DEEP BREATH REQUIRES

Five points of position that open the room: a level pelvis, a long spine, an open chest, loose shoulders, a lightly drawn-in chin.

A sound seat, ready for a deep breath — Fix the box from the bottom up: the pelvis is the root, the crown of the head is the tip.

REMEMBERAll five points at once

For the lungs to have room, these five points need to be there together: a level pelvis as the base; a spine lengthening upward, as though a thread were lifting the crown of the head; the ribcage opening slightly forward; both shoulders released down, no longer rolled forward; and the chin drawn in lightly so the neck is straight, neither tipped back nor dropped. With all five, the breath deepens by itself — nothing to force.

GRASP THISA line to remember the body's axis by

Keep it in the order of the body, bottom to top: firm base — long trunk — open chest — loose shoulders — chin in. Set the box straight first, and the breath follows. Do not start with “take a deep breath” while the box is still out of shape.

On the mat: Sit and build the five points in order from the bottom up — pelvis, spine, chest, shoulders, chin. Stop at each one for a breath so it can settle into place before you move to the next.

4 TUẤN ANH'S BREATHING WARM-UP

Four short steps to “open the room” before the session — get it working on yourself before you lead it for anyone.

Fingertips just above the nostrils to feel the air coming in — Fingertips just above the nostrils to “listen” to the air going in — quiet, long, unbroken.

REMEMBERSteps 1 & 2: set the pelvis, open the chest

Step 1 — Sit with the pelvis level. Sit cross-legged, comfortably; slide your hands under your seat and draw the two sitting bones back a little, so the pelvis stands upright instead of tipping back. If you habitually sit with one leg tucked across, even the two sides out.

Step 2 — Lift the ribcage, draw the elbows back. Rest your hands lightly on your knees, draw both elbows back behind you, lift the chest slightly and let the shoulders go — the room opens one notch further.

GRASP THISSteps 3 & 4: feel the air, take three to five breaths

Step 3 — Fingertips at the nostrils, feel the air. Bring your fingertips just above the nostrils, rest the tongue lightly on the upper palate, close the teeth softly, close the eyes. Breathe in slowly until the stream of air turns quiet, smooth and cool — you can “hear” the breath coming in.

Step 4 — Take three to five breaths. Keep breathing long, slow and even for three to five rounds, counting silently as you go so you learn your own limit. When the breath goes in deeply enough, the belly fills by itself — you only watch it; you do not force it.

On the mat: Do all four steps in order and take five breaths. Do not jump straight to the breathing step — it is the first two position steps that open the room for the breath to come in.

5 FIX THE BOX FIRST; THE BREATH FOLLOWS

Do not rush to call “breathe deeply” — set your students' position first, and the breath will find its own way in.

A teacher setting a student's posture before leading the breath — A teacher's job: make the box bigger for the student first — shoulders down, back long, chin in — and only then lead the breath.

REMEMBERA student who cannot breathe deeply: check the box first

When a student “cannot seem to breathe deeply”, the professional reflex is to check the box first, not to push them to try harder. In order: is the pelvis level, is the back long, are the shoulders released, is the chin dropped. Fix those four and a great many people feel their ribcage genuinely open for the first time — without you saying another word about “deeper, deeper”.

GRASP THISOne line that holds the whole lesson

One line to carry the lesson: fix the box first, and the breath follows. A good teacher is not the one who calls “breathe deeply” loudest, but the one who has the room already open so a student's breath can walk in freely.

On the mat: Sit and set your own box straight — pelvis level, spine long, chest open, shoulders released, chin lightly in — then do the whole four-step warm-up and take five breaths. Feel the difference between rounded and open. Only once you can see it plainly in your own body can you lead it for a student.

Lesson 5 next: Reading a student through the breath — look, listen, touch. The box is open now; next comes learning to “read” a person breathing: watching where the shoulders and ribcage move, hearing the sound of the air going in and out, touching to feel the rhythm — so you know whether they are breathing properly or merely trying.

Background reading for the whole set: Swami Satyananda Saraswati, Asana Pranayama Mudra Bandha; Ann Swanson, Science of Yoga; B.K.S. Iyengar, Light on Pranayama; Hatha Yoga Pradipika; together with the teaching of Vũ Trọng Tuấn Anh.

This is professional education, not a substitute for medical advice. A student with an existing condition — heart, blood pressure, respiratory or neurological — or who is pregnant should speak to a physician before practising.