As an example, when experiencing Bhanga, I did not know what it was. Only later I learned.
But i was aware that it was significant.
Or when seeing thoughts circle around and repeat in “topic” after 7-8 thoughts. I was observing them, from a separated mental place. But this act was not known to me as anything a word could describe.
Other similar states I experienced have no words. I do not see the advantage of making up my own words to describe and note them.