The Question and Answer section for One Flew Over the Cuckoo’s Nest is a great resource to ask questions, find answers, and discuss the novel.
I can give you one symbol. The Chief often sees things in a fog. The fog represents the institutional system and mechanized world that drains the humanity out of life. It is interesting that the fog dissipates with the arrival of McMurphy .
At the last minute, the nurse includes all the men on the ward in the vote including the Chronics who were unable to vote. All the patients included the whole wards had to vote. Not just the patients at the meeting.
Pick three of four consectutive paragraphs in the reading that seem to be the ultimate in Nurse Ratched, sticky note it and write a brief paragraph explaining what reader can learn about Ratched's character from the paragraphs.
Sorry, this is only a short answer space. This is an assignment question rather than a short answer question.