Mr. Save-The-Galaxy
Opinions/reservations about this aside... okay, actually, to answer this I have to admit that I find this idea (as presented; I have not read the book) kind of goofy, or at least... childish? It reminds me of those Disney Fairies books I read as a wee lass, where each of the characters had hobbies, interests, abilities, names, and even personalities corresponding to a specific element or field. Rani was the water fairy; Fira was the... fire fairy? Or was it light?... Tinkerbell liked to fix things ("tinkering" get it haha wow) and... I don't remember any of the rest, rip. But while this did create a diverse cast of characters with clear delineations and reasoning in how they viewed their world, there was absolutely no overlap or depth between them. Because they didn't want to confuse the tiny brains of the little children, I guess.
I don't think it's really a case of boiling down an entire character's understanding of the Force to something small like that, just their sort of knee-jerk perception/immediate imagination of it. You'll find that even in the field of theology a lot of people will have a pretty basic imagination of how they personally perceive the object of their belief, but once you go deeper into it beyond that and really start digging into the philosophy and everything, then by necessity that falls away. It's kinda similar to the idea of "where do you perceive your consciousness to reside?" and how that question relates to your senses and personal experiences.