pull down to refresh

if i watch an horror movie, i will have nightmare, if i watch crime/thriller, i will dream of crime/thriller story, Until one day i understood if i told to myself when i watch the movie of this kind it is just a fiction, then i do not do this kind of dreams.
I i watch comic movies, it flips my mood to better ..... some say it can cure ...
Now is it what we need to generate emotions through movies, books... ? Cause, at the end, what we want is to be quiet, follow our inner flow... ?
well it s just some thoughts...