In the film, the main purpose is to entertain an audience, preferably an adult watchers, and show the effects and causes of mental illnesses to which people are affected.
The maker of the film tries to make it clear to viewers how people were treated and how they tried to cure or compensate for their illnesses. He seeks to create a relationship between those who see the movie and whoever recites in the film (i.e. patients) to find a way to change the thinking of the people and to change the way the mentally ill were treated in a clinic.
Personal connection.