Sitting Zazen is loosening the survivor from the original reference frame that used to think. Skeptical ever adhering dedication towards free thought to step into the vacant and one with genuine original spirit.
Sitting Zazen are factors that contribute to mental disengagement from the frame of reference that had been previously thought clinging. To do so without entering the space as one with the essence.
Sitting zazen is factors to support out of your mind away from the frame of reference the original thought was incredible. Never properly. To without thinking to step into the emptiness and one with original mind.