Answer:
when they finally help each other and realise they are identical in some way yeah I think that's it in my opinion
As Holden shares his experiences, it becomes evident that he is talking from a mental facility where he is being psychoanalyzed. He is mentally insane, or at least considered so. This can be seen by his frequent use of the word 'madman" <span>when he criticizes himself: "I was smoking like a madman"</span>
fragment
there could be more added on to that sentence
I think it's The writer's beliefs