This is good stuff. And looking at the idea that so many movement and martial schools place the "core" of movement in the gut, it's interesting not just because it's a physical center, but also because there's a different kind of brain in our gut. Western scientists call it the "enteric nervous system."
The more we turn our studies from something you can see and think about into something we feel and sense, the more we're practicing an art directed from the gut.
Heribert Watzke: The brain in your gut
So Who is Really In Charge? The Relationship Between the Stomach and Brain Explained