The name comes from a blacksmith’s bellows. A very intensive, stimulating and invigorating breathing exercise.
Forcefully breathing in and out using the upper part of the lungs, with equal force and duration for the inhaling and exhaling. Rapidly inhaling through the nose and exhaling through the mouth.
When inhaling, I stretch up my hands and on the exhaling tips of my fingers, touch lightly my shoulders.
Another option when ending the exercise is to hold the breath for a longer while and then emptying the lungs while bending forward. Beware! this practice may cause dizziness.
Comparing: Breath of Fire / Bellows Breathing / Belly Pumping
All three types of breathing are rapid and intensive.
“Breath of fire” is an inhaling and exhaling exercise using the diaphragm to push out the air from the lower part of the lungs (abdomen). It is a stomach breathing, where the diaphragm is use to expel air from the abdomen, exhaling. Inhaling occurs by means of inertia, that is releasing the diaphragm muscle tension.
“Bellows breathing” is an inhaling and exhaling exercise focusing on the upper part of the lungs, avoiding as much as possible movement of the abdomen.
“Belly pumping” is a retention exercise. After maximum air is expelled from the lungs, the diaphragm muscles are used to push the stomach forward and backward rapidly, while holding the breath.