Yes - and if we are under the impression that we are observing with our mind silent, this constitutes a red card penalty and immediate 2 minute banishment.
This statement is actually very simple - It simply means : we think that what we think is true, is actually true - whereas our interpretation of reality, is merely our interpretation of reality.
We are slaves to our own delusions.
Sometimes we struggle against this simple statement with the argument that reality actually exists, so the statement that “its all in my head” is false. I think you did bring that up previously, but it does not refute the fact that my interpretation of reality and reality are 2 completely different things.
Assuming you are not at odds with the above statements, may I propose a couple of tests?
1)When you sit down calmly with no particular goal - if you hear a sound do you not immediately, instinctively “know” what it is - ie interpret the meaning of the sound and its relation to you (name it and judge : good/bad/indifferent)?
This apparently is due to our conditioning - we “know” what is going on, based on past experience (past experience creates present experience)
2)When you sit down calmly and observe yourself and your environment - is it possible to see the “entity” that is watching? (and to drop it)
PS - by entity I mean the feeling of “me” watching, the self filter (the judge)
PPS - these are of course experiments and do not constitute a method. we should hold on to neither conclusions nor methods.