If that's true, we should be able to discuss what it is that is spiralling. It can't be intent; that's pretty easy to establish. So what is it that is spiralling? Spiralling from where? All at the same time? Sounds like some sort of mixed up idea of directional-jin/kokyu, but somehow something else is being substituted for the intent-driven jin/kokyu. So what would that be? That would be my original question.... "how does it work?". I.e., WHAT is spiralling?
If it's a true perspective it can be explained physically.
... More things, Horatio. ... What it is, is spiralling in 90 deg. offset opposing spirals -- torsional shear stress, a potential which when released creates an unlevered action that the mind learns to lead and then to drive -- like surfing.
Old version of Yin-Yang symbol:
-- is just the plan (top-down) view of the spiral stress depicted this:
All shears cause rotation or rotational stress -- torsion. Shear stress in torsion in a cylinder (like the torso or limbs) is composed of a simultaneous compression spiral at right angles to a equal magnitude tension spiral -- and the stresses are maximal at the surface and diminishes to zero at the center -- which is what the old version of the diagram shows.