History and origin
The class called Purna Yoga in studios is the alignment method of Aadil Palkhivala, an Iyengar-trained teacher who added a heart-centred language and a therapeutic caution. The Sanskrit word purna means full. Sri Aurobindo used the same word for an integral life, a philosophical path and not a pose series, and the two uses should not be folded together. This page is the studio method. Props, clear lines and an instruction to stop short of pain are the practice. The warmer wording belongs to the school. It is not proof of a doctrine, and it is not a medical licence.
Palkhivala kept the long look at standing poses that Iyengar work is known for, and he asked students to build a shape rather than fall into it. You will be corrected in the feet, the knees and the ribs. You will also be told when the pose has gone far enough. Precision is taught as a kindness to the joints. The hour is moderate and detailed.
Philosophy
Alignment and attitude are taught together. A pose should be structurally clear and not harsh. The front knee, the back foot and the spine each receive one job, and none of them is asked to suffer for the photograph. Heart-centred speech, in this room, means the teacher talks about effort without contempt. It does not mean a feeling is required. If a cue turns poetic, translate it back into a joint that can bear weight. Fullness, here, is a complete shape, not a spiritual grade.
How a class proceeds
Expect detailed standing poses, props within reach, and a tone warmer than a purely technical hour. You will be corrected. You will also be told to stop short of pain. The pace is moderate: long enough to adjust, not a silence of many minutes, and not a flowing sweat class. Blocks, belts and blankets are ordinary tools, not a sign that the pose has failed. Most of the work is upright, with a supported shape near the end so precision does not become tension you take home.
Come ready to stand for a good part of the hour, and say so if knees, wrists or blood pressure need a limit before any inversion appears. You can ignore the heart language and keep the alignment. Both can happen in the same room. Neither is clinical care. The teacher is a teacher of poses, not your physician, and a careful class does not become a treatment because the voice is kind.
Intensity
The level is moderate. Standing poses ask for steady legs and a clear spine, and you will feel the work, especially in the thighs. You should still breathe through the nose and come out when a joint complains. It is stronger than a restorative hour and quieter than a power flow. New students can come if they will use props and accept verbal correction. Fatigue is not the point of the hour, and shaking is not a badge.
Benefits
The practice trains a more specific sense of where the feet, the knees and the pelvis are, and the habit of building a pose instead of collapsing into it. Props make a clear shape available without forcing the hamstrings or the shoulders. The repeated request to stop before pain is itself a skill you can take into other classes. None of this treats an injury. A therapeutic tone is not a clinic. What you can leave with is cleaner alignment and a little less unnecessary gripping.
Who it suits
People who want Iyengar-like precision with a softer voice fit this hour, and so do students who like to be told, plainly, what the knee is doing. You do not need to adopt the heart language. You do need patience with detail. A moderate fitness is enough, because the standing work is the centre and the rests are real. Beginners are welcome when they will stay with a prop instead of forcing the floor.
It is slow if you wanted a flow, and it is the wrong page if you came for Sri Aurobindo's integral philosophy under the same Sanskrit name. That is a way of inquiry, not these triangles. Skip the class if you dislike being corrected, or if you need the whole hour on the floor. Courtesy to the joints matters more here than matching a photograph of a full expression.
Beside similar forms
Iyengar yoga is the nearest method: props, alignment, and holds long enough to see the pose. Purna keeps that precision and shifts the tone toward a warmer, more cautious voice. It is not a vinyasa sequence, and it is not a restorative class, though it may end in one supported shape. It is also not Aurobindo's purna yoga. The word is shared. The histories are not. The studio class is the one with a block under the hand and a clear instruction to stop before pain.
Best positions
Precise triangle
Place the feet in a clear stance, the front leg straight, and set the back foot as the teacher asks. Put a block under the lower hand so the pose is built rather than fallen into. Turn the chest only as far as the front knee stays easy. The shape teaches a long side body without asking the hamstring to pretend it is longer than it is.
Warrior with a job
Take warrior II and give the knee, the back foot and the gaze one instruction each. Bend the front knee toward the second toe, not farther than a knee that can still sit over the heel. Press the back foot down. Reach the arms without letting the shoulders climb. The stance strengthens the legs in a shape you can leave. Come up before the thigh shakes past your control.
Standing side angle
From a warrior stance, rest the forearm on the thigh or the hand on a block, and lengthen the top ribs. Do not sink into the lower shoulder. Keep the bent knee in line with the foot. The pose continues the standing work and asks the side body to lengthen under a load you can breathe with. Leave it if the knee wanders inward and will not return.
Belt-assisted fold
Stand, loop a belt around the feet if the hands do not meet them, and fold with the knees soft. The belt lets the spine stay long instead of rounding to chase the floor. Keep the weight in the feet. The fold lengthens the back of the legs only in a range you can breathe in. Rise by bending the knees more, not by pulling the back up in one piece.
Propped seated twist
Sit on a blanket, bend one knee, and hold the knee or a belt so the twist comes from the ribs rather than a yanked neck. Keep both sitting bones down. Turn only to the first honest rotation, then breathe. The pose organises the upper body while you still know where the pelvis is. Pain at the back of the pelvis is a reason to come out, not a signal to go further.
Measured bridge
Lie down, set the feet near the hips, and lift the pelvis only as high as the knees stay comfortable and the neck stays quiet. A block under the sacrum can make the shape supported. The pose works the back of the legs and opens the front of the hips a little, without a gymnastic arch. Lower slowly if that keeps the breath steady. Skip it if the neck cannot rest.
Supported rest
Place a bolster under the knees, or a blanket under the head, and lie still. The eyes can close. This ends the corrections rather than starting another pose. Stay for several minutes. If the low back complains while you lie flat, keep the bolster under the knees.