[vonunov]

Look into "worded thinking", "unworded speech", "partially worded speech": https://hurlburt.faculty.unlv.edu/codebook.html

See also papers from Hurlburt and others on "unsymbolized thinking" and surrounding topics

[chrisweekly]

"There is a depth of thought untouched by words, and deeper still a depth of formless feeling untouched by thought." - Rilke