I remember one time explaining to my pdoc about how some tourists who visit Jerusalem start to believe they are Jesus Christ, start dressing like him, etc. Its called Jerusalem syndrome and is psychosis.
My pdoc is like I never heard of that and please explain more. (A consultant psychiatrist)
I think he plays dumb. Obviously I said its crazy while still believing I have a microchip in my left armpit.
It is to check how strong your delusions are or to see if you are even delusional or not. I have heard the “Our system is down and I don’t have my notes from the last session can you tell me again about the _____” so many times. They seem to remember everything else from every session though, what meds you are on and the doses, etc.