Therapists are aware that many patients are highly suggestible and are very careful how they use that influence.

If T told you what he gets out of it, you would probably try to feed into that and become what you think he wants you to be. It's not for him to decide what you should be.

If I were a T, what I would get out of it is watching my patients grow. But it would be dangerous to say even that. The patient might feel she was not growing fast enough.