Perception is knowing what you do and don’t understand - through any sense. To learn how to swim we focus on those that resonate best with our learning style. And most learners are highly visual.
Form (swimming technique), force (anaerobic ‘power’), flow (aerobic ‘capacity’) independent of one another are just skills and drills. When they are intertwined together, the magic that coaches and ‘lifers’ refer to as ‘feel for the water’ emerges out of perceptual chaos.