Breathing By Koichi Tohei Sensei — Ki

The breath should make a distinct but barely audible sound (often described as an "a" sound rather than "h" to better engage the diaphragm).

Inhale from the tip of the nose until the body is naturally saturated with breath. Ki Breathing by Koichi Tohei Sensei

The practice is designed as "whole body breathing" where the mind leads the body. The breath should make a distinct but barely

At the end of the exhale, Ki should continue to extend infinitely like a fading note. Ki Breathing by Koichi Tohei Sensei

Tohei Sensei taught that our lives are part of the "universal Ki" and that breathing is the primary method to keep this conflux unimpaired.