dear, dear EM.....

the fact that it is pressing on you to talk about it may be an indication that you can do it... now that you have established such wonderful safety with yr T, let T figure out how to approach the subject.
I have an area that's secured with tall walls and barbed wire and big signs saying, private!!! keep out!!! she knows it's there, and now that I think of it, she does stroll by it now and then, just to sort of establish herself in the neighborhood - and I don't feel threatened by that.

take your time, let T help - this is where the training and skill come in. And remember, you are very loved.