Mobility - not referring to footwork or stances today.
Mobility is the ability of the body to move through ranges of motion. Easiest way to visualize this is to think of moving the joints of the body in circles - understanding physiology limitations of some joints (they just aren't made to move that way). this also includes loosening the spine (my tight back limits my bridging abilities - working on this).
I have a tight upper body, which limits mobility, and inhibits 'jing' to some degree. Better relaxation and range of motion helps to unlock the bodies abilities.
My YKM Brother Christer demonstrated some exercises - a martial application to what I have been looking at for health. Very cool stuff.
Thanks to all who read the blog, comments/input are welcome.