Sounding & releasing breaths: the lion, the Om breath and the uneven ratios
There is one group of practices every student takes to at first try — because they release so quickly, they are easy to do, and they come with a sound for the mind to hold on to. That is the sounding & releasing group: the lion breath (Simha), roaring the air out to clear the tension from the face, jaw and throat; the Om breath (Udgeeth), holding one long note that settles the nervous system deeply; and the uneven ratios (Vishama Vritti) — including the famous 4-7-8 — for calming and for sleep. This lesson closes the body of practices with the best-loved tools of all, plus a few short variants to round your kit out completely.
Roar one breath out, tongue out — clearing the tension from the face, jaw and throat
Simha (“lion”) is usually practised kneeling (Simhasana). How: breathe one full breath in through the nose; then breathe out really forcefully through the mouth — at the same time opening the mouth wide, pushing the tongue out and down as far as it goes, eyes wide and turned up towards the point between the eyebrows — making a hoarse “haaa” like a roar. Three to five times. This practice releases the muscular tension in the face, jaw and throat — places we clench under stress without noticing — and makes students laugh, let go, and feel bolder.
Because it looks faintly ridiculous, Simha is an excellent psychological tool: it breaks the self-consciousness, gets the room laughing and loosening, and suits the opening of a session or any moment the room has gone stiff. For anyone who grinds their teeth, has a tired jaw, a tight neck, or talks all day, it releases exactly the right place. There are virtually no breathing contraindications; only note that if you sit in a full kneel, watch for sore knees and ankles — the roaring part works perfectly well sitting on a chair or cross-legged.
Hold one long “Om” on the out-breath — the resonance settles you deeply from inside
Udgeeth (also Omkara / Pranava — “the Om breath”) has very old roots in the Upanishads. It is the simplest of all the practices to do: sit upright, breathe one deep breath in through the nose; then breathe out intoning “Om” — drawing the “O” out and then closing it into an “M” humming through the out-breath, in one continuous, even note, until the air is nearly gone. Five to ten times. The note creates a resonance in the chest and the head, which helps settle the nervous system and gather the mind — a very natural doorway into meditation.
Students easily confuse the two practices with sound in them. Make it clear: Bhramari (Lesson 9) has the mouth closed, making a humming “mmm” like a bee; Udgeeth has the mouth open, sounding the vowel of “Om” out loud. Both use resonance to settle, but Udgeeth is a touch more outward and easier for a beginner, while Bhramari is more private and more inward. With both in hand you can pick the one that suits the setting: a full room can intone Om together, while quiet solitary practice calls for Bhramari.
When the out-breath and the hold run longer than the in-breath — the formula for calm and for sleep
In Lesson 15 we learned Sama Vritti — four equal phases. Vishama Vritti is the opposite: deliberately using an uneven ratio, usually lengthening the out-breath and the hold to push harder towards settling. The commonest rhythm is 4-7-8: breathe in on four → hold for seven → breathe out for eight; three or four rounds. The Iyengar tradition also has a 1:4:2 ratio. Because the out-breath is twice the in-breath, this practice is very effective for bringing tension down and getting to sleep — you can teach students to do it at home in bed before sleeping.
4-7-8 contains a fairly long hold (seven counts), so the safety rules for held breaths apply: anyone with high blood pressure, a heart condition, who is pregnant, or prone to dizziness should shorten the hold (4-4-6, say, or drop it altogether and simply keep the out-breath longer than the in-breath). With beginners, don't start on the full 4-7-8 — have them do “in four, out six or eight” first, and add the hold once that is familiar. The counts should be within reach, never held to the point of snatching a hurried breath at the end.
The crow's beak, the panting breath and the resonant rhythm — to round the toolkit off
In the same cooling family as Sitali / Sitkari (Lesson 9): Kaki mudra — purse both lips into a “crow's beak”, draw a cool stream of air in very slowly through the gap, close the mouth and breathe out through the nose. A good option for a student who cannot roll the tongue (Sitali) but still wants that cool, settling feeling. Avoid it in cold weather, with a cold or a sore throat, as with the other cooling practices.
Swana (“the dog breath”) is fast panting from the belly (which may be done with the tongue out, through the mouth), to warm and wake the abdominal area. It is not a practice in itself but a warm-up often used before Kapalabhati or Bhastrika to get used to the feeling of the belly pumping. Do it for a few seconds only, stop at once if dizzy, and treat it as having the same contraindications as the forceful practices (pregnancy, high blood pressure, heart conditions).
Modern science has found one particularly beneficial breathing rate: about five or six breaths a minute (each round in and out lasting around ten seconds), called resonant breathing. This is not a new practice — it is the foundational breath (Lesson 6), or the even breath, done really slowly. What is worth saying: there is research suggesting this rate helps bring tension down and steady the heart rate. You can use that figure to explain to students on solid ground why “breathing slower” is useful — without promising to cure anything.
Use them at the right moment: to break the ice, to connect, or to lull a room into stillness
A quick way to choose: the room still self-conscious and stiff at the start → Simha, to get them laughing and loosening; wanting to connect and move into meditation → intone Udgeeth together; at the end, or as homework, to sleep well and bring anxiety down → 4-7-8 (the lighter version for anyone with a condition). These three are well loved because they have sound in them and are clearly felt at the first attempt — perfect as the moments that make students remember and enjoy your sessions.
Gentle though most of this group is, don't drop the safety habits: (1) a practice with a held breath (4-7-8) → ask and exclude, and offer the lighter version to anyone with a heart condition, blood pressure or who is pregnant; (2) a heating / forceful practice (Swana) → the same rules as the waking–heating group; (3) always let students stop and return to natural breathing at any dizziness or discomfort. A skilled teacher is one who can pick the “fun” practice without forgetting the safety underneath it.
Professional sources: Gheranda Samhita — Simhasana / Simha & Kaki mudra; the Chandogya Upanishad & the modern tradition — Udgeeth / Omkara; B.K.S. Iyengar, Light on Pranayama — Vishama Vritti (the 1:4:2 ratio); Dr Andrew Weil — the 4-7-8 rhythm; APMB (Bihar) — Swana; modern research on resonant breathing at about five or six breaths a minute. This material is educational and not a substitute for medical advice.