Absolute relaxation, therefore can only exist during those few seconds of respite which we allow when we hold our breath with the lungs empty. Having completely emptied the lungs and held the breath for a few seconds, you will soon realize that your breathing is attempting to start up on its own - therefore relax your stomach and allow the breath to flow. As air enters the lungs, the stomach expands and rises, because the dome of the diaphragm has flattened, and not because the muscles in the abdominal region have contracted. People believe, often in all good faith, that they are "breathing from the stomach", because they are flexing their abdominal muscles. In fact, the latter should be relaxed, and must remain so throughout the inhalation. The lungs gradually fill with air from beneath. the inhalation will be slow, easy and unquestionably silent. If you do not hear yourself breathing it means that your respiration has acquired the correct slowness. If audible it means you have inhaled with much too haste.