The various Kokyu-ho devices of Aikido can be understood as simplified waza.  They are psychophysical means of first amplifying one’s lack of body-mind-breath coordination and then of cultivating that coordination.  With the coordination of body, mind, and breath, a practitioner seeks to develop a relaxation that is not yielding and a heaviness that is not sluggish.  These traits are particularly developed in the seated versions of Kokyu-ho. In Time, one’s technical architectures and/or spontaneous expressions of the art come to demonstrate the positive relaxation and dynamic heaviness that is being cultivated in Kokyu-ho.  Uke: Steve Cady - Sankyu (1 minute, 4 seconds)