It is essential to breathe in as well as out
through the nose. the stomach should rise gently like a balloon being
blown up, and the muscle structure should remain supple: should you
wish to control the movement you may place your hand on your stomach
near the navel, at the same time resting the elbow on the floor. In
this way it is easy to follow the expanding movement of the stomach.
While this is going on, place the other hand against one side so that
you can ensure that the ribs remain completely still, and so realize
that the abdominal and thoracic breathing are completely separate.
Should your ribs still move while the stomach is rising, they should be
immobilized by girding the thorax with a belt placed near the lower
part of the sternum, in the pit of the stomach. Fasten the belt when
the lungs are empty, to the required girth. While you breathe in the
breathing and your diaphragm will be forced to flatten and your stomach
to expand. While you are breathing in, you should be conscious of what
is going on in the warm depths of the thorax; you will soon find you
are conscious of the movements of the diaphragm, and you will be able
to separate the two phases and dispense with the belt.