> Even if the symbol fails to materialise you can still identify what the symbol refers to via context-clues (analysis)
That is what my partner in the conversation is doing. I am not doing that.
When I think of a plan what’s needed to be done (e.g. something broke in the house, or I need to go to multiple places), usually I know/feel/perceive the gist of my plan instantly. And only after that, I verbalise/visualise it in my head, which takes some time and possibly add more nuance. (Verbalisation/visualisation in my head, is a bit similar to writing things down)
At least for me, there seem to be three (or more) thought processes that complement each other. (Verbal, visual, other)