Raul Rodrigo wrote:
requirements of good waza (don't "resist") [versus] the principles behind the exercises to build up ki/kokyu.
I have never found there to be any discrepancy between them. Certainly not one that called for training that resists force. I have only ever wanted Mike to explain how to reconcile force resistance inherent in "bouncing" energy off the ground with aikido's inherent prinicple of non-resistance.
You do what you train to do. Training for resistance in Aikido is antithetical to its fundamental purpose and prinicples. That does not mean there is no force involved in the interaction.
I have personally struggled to eliminate my native resistance, at first veering toward sheer avoidance of force, wrongly, as Mike properly criticizes in some aikido training that is out there (but wrongly assumes that I do) to, finally, connected non-resistance, which has been my considered model of training since I left Hawaii. I blame it on the beer after practice.
Shioda's chosen kihon dosa, in my limited understanding, have that precise point, that these principles are in the waza. The care in performance of the shape of kihon waza in Iwama practice which I know far better, was of a similar vein.
Raul Rodrigo wrote:
... In these exercises, the point is exactly as Mike S says: to send the force of uke on a path to the ground.
There are two routes available to you without resisting his force. You can also just as easily send the force of uke on a path to Heaven as to Earth and that energy is equally spent in the process. The kihon of the various systems all have these principles within them, if one is mindful and attentive to what is happening when you do them.
A wave is a translated rotation (irimi/tenkan).
Ever watch two dissimilar sized waves intersect in opposite directions? The smaller wave peak causes the larger wave peak to rise upward (ten) and break prematurely, while the smaller wave disappears from view for a moment and then passes on through hardly disturbed.
There is the visual sense of some sort of rebound force that "forces" the larger wave to suddenly rise up and break (like it had been "bounced" off the planet). And notably this occurs when the smaller wave is. momentarily, no longer apparent. But it is not a resistant spring rebounding from one against the other. It is really a joining of inherent form and energy together. The substance of the two waves are literally identical (ki-musubi) at the time of intersection, only their forms of motion are differnent.
Even though they are opposed in direction -- irimi/ tenkan principles allow the smaller to so exalt the greater that it moves beyond its capacity to maintain control. This sort of interaction is done all the time in kokyu tanden ho exercise.
Conversely, if the trough of the smaller wave hits the peak of the larger as it begins to break (attack), the peak of the larger wave drops down (chi=earth) and the incipient break or attack is snuffed out almost instantly, like it fell into a hole in the earth. Its energy evaporates upon contact. Both waves are resting their weight on the earth -- neither one is crushing the other by resisting against the supporting earth.
Do both -- ten-chi -- at the appropriate time. Neither one is resistant.
Mike is focussed on the ground, and in a mode of weight bearing different (i.e.- resistant) than that suggested by Shioda's explanation of chushin principle by centering on the big toe. Ground is not the only principle in play, nor do its uses require training that involves resistance to force.