Saving Private Ryan

In the book, "How to read literature like a professor", Foster states that a quest in a story will always be about self-knowledge and the given reason for the quest will never be the true deeper reason. A prime example of a quest is shown by the movie,"Saving Private Ryan". The group of soldiers think they're going on a simple mission to bring a soldier home. Instead, all but two of them die and they obtain self-knowledge about why they are in the war in the fist place, to fight. The deeper meaning behind the failed quest is to show the brotherhodd of soldiers during the first World War. The true reason behind them going to the bridge at the end is to defend the bridge and fight instead of ust getting Private Ryan and going home.