I've had a few "door number 2" experiences of a session making me feel energized by giving me a "vacation from reality" experience.

I haven't had any of the first kind of experience.

When I started therapy I would often have to leave in a very emotional state. Pick my intestines off of the ground and go to work.

I sort of see therapy happening in a session like a wild tomato plant I once found growing between two concrete steps.

Not likely, but not impossible and completely accidental.

Bringing stuff into the conscious mind is only one part of therapy, the second part is neutralizing it.

Maybe that happens more with longer sessions, with better dommes, and dommes you visit often enough for them to know you very well ( and care ).