That sounds like how it often feels to me. I'll bet a lot of PC members could say the same thing.

Your T may be trying to make a point that has some validity, but I wonder if this T really "gets" depression. IMHO talking about depression as an "entity" with its own internal logic (independent of what makes sense to your willful, conscious mind) makes no less sense than talking about being brought low by an infection . . . or by a malignancy. Isn't it amazing how all us very different people with completely different life experiences can describe depression, and it tends to sound similar . . . as if it were the same entity visiting each of us.

Depressed people tend to have distorted perceptions, but your perception of depression as an "entity" is not necessarily a distortion. I'm not suggesting you waste time in therapy arguing with the T, but I hope the T knows not to do that, either.