Hmm. Just found this picture. Not sure who will be able to see it, but:
in light of which, please see the first post in this thread:
"...picture Morihei Ueshiba standing before you. Imagine him completely nude, standing as he feels comfortable.
Now imagine him with his skin gone, so that we can see the muscles. Now imagine that all the muscles disappear, but the bones and internal organs remain in place, as if the muscles were still there. The blood and vessels remain, the nerves remain and the fascia remain.
Now imagine that the bones are gone and the fascia, blood vessels, internal organs, etc. all remain where they would be as Morihei stands as he feels comfortable.
Now imagine that everything is gone but the fascia, itself, remaining exactly where it was when Morihei stood in whole body.
So now you're looking at only the fascia of Morihei Ueshiba, standing like a man. You will notice that this is not really a "suit" but more something like a sponge, with empty places held inside convolutions of the tissue. This is where the internal organs were held. There are spaces where every muscle would be, so that Morihei's fascia forms something like a hollow man--not a full-body empty suit, but an entire layer of the body's tissues. The internal organs, the muscles and bones and every other part of the human body are embedded in the fascial layer of the body.
So see Morihei's full fascia body, standing before us like a man made of leather, and realize that that tissue is alive in its own right. It has feeling and it is full of ki. And when one part of the fascia feels something, the entire system of the fascia feels it because it is purely connective.
The entire discussion of "this stuff" or "internal mechanics" really involves using that entire fascial being to augment the efforts of the muscles and bones. Most people think of using their muscles to move their bones to execute techniques and this can be enhanced by various exercises to strengthen both muscle and bone.
But since the fascia is not like muscle and cannot be made to contract or expand by sheer will, like a muscle, it will take a lot of deep thought to see just how the fascia system could augment power and just how it could be exercised to do that."