One flew over the cuckoos nest

A moral or a lesson is a common convention in stories. In what way has Ken Kesey, in One Flew Over the Cuckoo’s Nest adhered to or subverted this convention? In other words, to what extent does the novel attempt to impart a moral or lesson, to what degree it is successful if it is attempting to impart a moral or lesson, and how does Kesey’s choice to or not to impart a moral or lesson impact the meaning of the work as a whole? Make sure to follow the expectations of the rubric.