I feel like my T understands how painful it is or if not pretends or tries to understand at least which is good enough for me. I imagine that some of those T's that have been through their own therapy may have even experienced it themselves so really know what it feels like. Some of them may only be more aware of it from just reading about it in a paper or even whilst at a conference so not really have a true sense of what it is like. Lots seem to have no idea at all though!