Definition of Allegory
Key Examples in Girl, Interrupted
In Chapter 30, Kaysen explains the feeling of dealing with mental illness using the following allegory:
Think of being in a train, next to another train, in a station. When the other train starts moving, you are convinced that your train is moving. The rattle of the other train feels like the rattle of your train, and you see your train leaving that other train behind. It can take a while—maybe even half a minute—before the second interpreter sorts through the first interpreter’s claim of movement and corrects it.... You can flit back and forth between these perceptions and experience a sort of mental vertigo. And if you do this, you are treading on the ground of craziness—a place where false impressions have all the hallmarks of reality.