This puzzled me;
I see this wasn't a direct question;
Here's a direct question : Ignatius please show a diagram of the hard, articulated muscle-like dantien. Preferably from a reliable medical source.
I'm with Oisin in wanting answers and illustration.
That's the exact quote I was going to pull before Michael beat me to it.
"That's pretty telling. It's actually the tanden no seika, or dantien (in Chinese). It's a hard, articulate muscle-like structure that's located approximately 4 fingers width below your navel and 1 fist deep in the body. Like any other "muscle" in your body - including your brain, unless you physically and consciously exercise it, it's not going to develop. Good luck with that too."
1.Why not give a clear explanation in how to isolate and develop
2. How does this muscle come into play when your wrists are grabbed? How do you isolate and utilize this muscle in "Kokyu-Ho"
or suburi for that matter?
Jonathan made a concerted effort to explain and describe how he trained and what he understood suburi and the rowing excercise to be over a number of posts. He provided videos to illustrate his thoughts. The "Socratic Midwife" approach is fine to an extent, but
why not just give him some clear pointers on this basic thing?