No matter how much experience we may gather in life, we can never in life get the dimension of experience that the imagination gives us. Only the arts and sciences can do that, and of these, only literature gives us the whole sweep and range of human imagination as it sees itself
Northrop FryeCharacters tend to be either for or against the quest. If they assist it, they are idealized as simply gallant or pure; if they obstruct it, they are characterized as simply villainous or cowardly. Hence every typical character...tends to have his moral opposite confronting him, like black and white pieces in a chess game.
Northrop Frye