Minor apologies, I was looking for a provocative title and the above popped right into my head. I think we can all agree that the dantian is “real”, and I won’t attempt to define it, except perhaps in a functional sense. Even then, I won’t talk about QI. However…
Dr. Yang, Jwing-Ming is someone who’s written a great deal about qi, based on his own scholarly studies, training, and practice. In one of his books, there was a PHOTOGRAPH of the dantian. It was an actual human abdomenal cavity containing the nested, coiled intestines. If you’ve had any human anatomy in school you’ll know that this is an amazingly long “roadway” for the foods we eat; they travel it slowly and our miraculous body converts it to the nutrition and energy we need to live, think, and move.
I won’t try to add more except to say that our “guts”, “dantian”, “core” (to use the currently popular expression), and “centre” (in TJQ and other martial arts) are fellow-travellers at the very least. Tonight when I decided to Google into this intestines/dantian connection, I found a very interesting article which ties in to the warnings we hear about the over-use of antibiotics (which seems to be accelerating as we build up our artificial, anti-natural postmodern world). If you’re concerned about the “end of nature” now in progress, here’s another piece of the puzzle:
http://www.hpakids.org/holistic-health/articles/149/1/Leaky-Gut-Syndrome.htm