Ten years I'm immersed in an Eastern perspective of health, trying to understand it enough to explain it to my people, and it was a Newtonian physics-based field of study that finally made it all click for me.
Yes, I've heard the word 'flow' used to describe what qi (or 'ki' in shiatsu-ese) is or does... as in 'flow of vital life force energy'. Or stagnant qi flow. Or excessive qi flow. Or deficient qi flow. You get the idea.
But it was only when a brief statement made in passing by biomechanist Katy Bowman describing what she meant by flow...