Are non-dual states of consciousness something you have experienced?
From a single, tiny gap between thoughts to longer periods, anything goes!
Of course it is hard, and by definition impossible, to describe these in words, so any attempt will have to be good enough :-)
All we can do with words here are using those as pointers to that state, as well as trying to describe previous experiences.
I'll do some longer posts later, want to hear from others first. In short I can mention now that the first real, kinda controlled experiences I had was with meditation around 95, then later when I got back into that universe in 2016 it was getting into the deep end compared, with ~4 days of no new thoughts arising, while still very much functional fortunately!
Hell, I even did a business meeting in that state haha, and that worked out very well actually... Not saying I did that with no thoughts or concepts of course, but there was nothing in me that added to those, it came & went within open, non-grasping consciousness sorta :-)
So, anything goes in this thread!