I would hope that any question that comes to mind could be asked! Even if the question itself isn't answerable, the reason for the question can be discussed. Sometimes that is more important.

I do think it's very good to know how your T thinks, and what the T thinks... as it's very important to NOT put words into the T's mouth, which is a common error. (We only think we know what the T would say, when in reality...we have it all wrong.) Going over what you think and what the T thinks is good in developing reality.

TC