The soul covers three distinct things: your original state, the form it adopts and finally the actions it initiates. In Japanese the characters for “Ultimate Secrets” of an art are not written using the Characters for “Ultimate Technique” but the characters for “Ultimate Mind”. Simply put it’s the spirit’s demeanor that influences the rest of the body.
Zazen requires that user sits upright in the perfect posture, slowing down their breathing to the point that it almost stops while completely voiding their thoughts. Zazen looks like the user is immobile, but in fact it is indiscernible global movement. Similar to a top spinning at full speed on its axis. Immobile but in constant movement