Yes, I have learned the same method of dream interpretation as your therapist but I think I see a chink in interpretation that may help you.

Yes, I believe everything in our dreams is about us. When I dreamed about my T, what she said/did/her appearance was in reference to and about me. However, one cannot be all the people in a dream at the same time I had a dream where I had my head in my T's lap and she was stroking my head. That was all about me but I was not both myself and my T at the same time, one can only look at one aspect of the dream at a time.

Yes, I would like to be comforted by my T-mother by having my hair/head stroked. If one looks at that, one can see that the desire to be mothered/comforted/loved has the opposite in it too; to desire it one has to have experienced it and know what it feels like, one has to have been a "mother"/comforter/lover to make the connection. Too, since it is my dream, I'm making the whole thing up in my head so taking care of myself, mothering, comforting, loving myself by creating this image in the first place. Therefore, I "am" a mother, comforter, lover, (therapist).

One of a therapist's main jobs is to "reflect" us to ourselves. They're kind of like a mirror. That's very much like the job of dream interpretation too. Our dreams are about us because we're the ones thinking them up. The "screen" of our mind/dream is the mirror of our unconscious experience. We go to T during the day and dream during the night. We are indeed "fearfully and wonderfully made" as the Bible says. (Psalm 139:14)