Why do you think that Lennie hallucinates at the end of the story? What is the significance of the hallucination?

The content of Lennie's thoughts, and of Lennie and George's eventual conversation, also mirrors the opening. Lennie repeats the child-like, ritualistic cycle of separation and reconciliation that has seemingly marked his relationship with George for years. Once again he hears George complain that he could live it up if not for Lennie; once again he offers to leave George and live in the hills; once again he gets George to tell him about their rabbit utopia.

However, these similarities - the setting and the content - only ultimately emphasize how much has changed since the novel's opening. Where George was once full of life - angry and forgiving - now he is a husk of himself, bereft of emotion as he goes through his monologues. What was once a plausible - if far-fetched - fantasy has disintegrated into delusion. He knows what must happen, even as Lennie goes on believing in the rabbits. Whereas in Chapter One we see George and Lennie's "best laid plans," here in Chapter Six we have irrefutable evidence that, just as Robert Burns' poem predicts, these plans have gone awry.

Emphasizing the delusional nature of Lennie's point-of-view, Steinbeck adapts his one experimental narrative gesture in the novel, choosing to depict two hallucinations - first Aunt Clara, and then (more ludicrous still) a giant sardonic rabbit. It is unclear whether we are supposed to understand these hallucinations to be one-time phenomena or regularly recurring. (By the way, the reader may find it a bit unbelievable that this gentle giant, who everywhere else proves incapable of understanding figurative language, is able to imaginatively generate such colorful self-chastisements as "you ain't worth a greased jack-pin to ram you into hell" (112).)