Depression is a disease that is treated with medicines, sessions with a psycho-therapist, group therapy, they have you running, swimming .. it sounds like fun and it is not.
The good news is, that they have you do "pleasurable things" and, laughter is considered advantageous.. Sigmund pokes fun at therapists, patients, the world and its foibles.
The use of antidepressants is such that all fish are on it and must be happy.. Maybe fish for a next life ?
The good news? You get well and over it and, there is always tomorrows Sigmund.