Fight Club’s accomplishment is to elicit in us the instinctive fear, resistance, and embarrassment we all experience around the domain of our inferior function, whichever function that may be for us. The reward for sticking with the movie until the end is a catharsis that feels as if we have integrated our own inferior function.
Angelo Spoto
The ego asks why anyone in his or her right mind should actually allow the troublesome aspects of his or her personality to be expressed. Jung’s answer is “for the development of character.” …For Jung, the inferior function is thus not just a trouble-maker extraordinaire, it is a moral exigency as well.