Ki Breathing By Koichi Tohei Sensei -

According to guidelines from organizations like Boulder Ki Aikido , there are five specific principles for correct practice:

At the end of the exhale, Ki should continue to extend infinitely like a fading note.

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

Tohei Sensei claimed that regular practice, especially 15 minutes before sleep, could lead to increased vigor and health. Ki Principles by Tohei Koichi Sensei - Boulder Ki Aikido

The practice is designed as "whole body breathing" where the mind leads the body. According to guidelines from organizations like Boulder 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).

Correct breathing is impossible without a natural, stable, and relaxed posture, which Tohei called "the posture of mastery". Ki Principles by Tohei Koichi Sensei - Boulder

After inhaling, settle the mind at the "One Point" in the lower abdomen. Benefits of Daily Practice