maybe you could say that psychotherapy is

when a person can relate the most horrible incidents in their life without batting an eye, with no emotion whatsoever
and through the therapeutic process comes to be in touch with those feelings, and relives the horrors, with all their accompanying emotions,
so that on some future day, the same person can acknowledge the same horrible incidents in their life without batting an eye.

T said this is an unjust capsulization; the person at the end of the process doesn't suffer from suppressed pain, doesn't have to expend energy keeping the lid on suppressed emotions.
That's true.