That's a great question, Jonathan. I believe that the purpose of
mentioning O'Brien's stay with Elroy Berdahl is that he wants readers
to understand why he decided to go to war. He discusses earlier in the
chapter how he couldn't decide whether to run away to Canada, or to be
a hero and go to the war. He says he doesn't believe in this war, but
that he knows he will be a coward if he runs away, and he doesn't want
to disgrace his family. So he starts driving, and he arrives at the
Tip Top Lodge, where he meets and stays with Elroy Berdahl. While
Elroy doesn't seem to be significant, he makes a big impact on
O'Brien, as Tim mentions: "The man who opened the door that day is the
hero of my life...the man saved me" (O'Brien 46). I think the purpose
of this story is to help us understand how he saved Tim and the
significance of this man on Tim's life. He is described as quiet, but
O'Brien often says that he thought Elroy knew what he was thinking. He
knew that he was drafted without O'Brien having to tell him. He takes
Tim up the Rainy River and into Canada, where Tim finally decides that
he must go to war. He thinks that Elroy purposely does this, although
he can't be sure. He accredits this decision to Elroy, and he believes
that because of Elroy, he made a decision that changed his life. Tim
O'Brien goes as far as saying, "He was simply there, like the river
and the late-summer sun. And yet by his presence, his mute
watchfulness, he made it real. He was the true audience. He was a
witness, like God, or like the gods, who look on in absolute silence
as we live our lives, as we make our choices or fail to make
them" (O'Brien 57). This means that just through his presence and
through the week he spent with Tim, Elroy helped him make the hardest
decision he ever had to make. I think physically taking O'Brien to
Canada and giving him the choice to jump into the water and to the
shore made Tim decide right there on the boat whether or not to go to
war, but I also think the things Elroy did and didn't say to O'Brien
made him decide to go to war. He helped O'Brien make the hardest
decision of his life, making him significant in Tim's story and in his
life.