There’s an interesting thing there that I believe varies person to person. My understanding is that some people do think in a more symbolic/heuristic way, some rely very heavily on their inner monologue to make sense of things (I am in the latter camp, and only have a single core language processor so pretty much cannot come up with coherent thoughts if I’m concentrating on what someone else is saying)
Even more interesting, and getting off on a bit of a tangent, there is also a mode that I use for revealing emotions that I don’t have words for (alexythmia): I open up a text editor, stare off into space, and let my fingers type without “observing” the stream of words coming out. I then go back and read what I “wrote” and often end up understanding how I’m feeling much better than I did. It’s weird.
Edit: also, playing with local models through e.g. llama-cpp in “thinking mode” is super fascinating for me. The “thought process” that comes out before the real answer often feels pretty familiar when I reflect on my own inner monologue, although sometimes it’s frustrating for me because I see where their “thinking” went off the rails and want to correct it.