It’s not form or technique, it’s the koppo. It’s the whole body. It’s the power of zero. Don’t hit or strike. Play in the space. — Hatsumi-soke

Recently, a friend asked me to voice my thoughts on the quote above. here’s what I wrote back:

We always think of “koppo” in terms of bone attacks but a few years ago, Hatsumi-soke explained that koppo has a deeper meaning. My simple understanding of Koppo is knack (“skillful means”). So, koppo is letting go of the form and intent; moving naturally to effect others within “their” movements.

For me a really “cool” non-martial way of explaining this is:
“A boozer looking for a fight walks into a bar. His attitude is plastered all over his face and body… Jackie [Chan], sitting in a chair, turns the chair and the boozer goes flipping over Jackie’s leg smacking his head on a table and falling unconscious.”

But as another friend of mine used to say, “Of course, I might have it all wrong.”