These two chapters have a lot of useful historical analysis. The defining characteristic of Romantic Art is that it portrays Man as a volitional being whose choices are significant determining factors in the course of his life. Indeed, it is precisely this behavior that is the defining characteristic of a hero. So, to put it quite simply, since I am a man whose life is built around very firmly and explicitly held values, I love stories about heroes. Stories which show me, in symbolic form, the achievements of others and thus help give me the spiritual strength to work toward my own goals.
Man needs heroes.
We need to believe in strength, nobility and courage. Otherwise we become sheep. He makes a Secondary World which your mind can enter. You therefore believe it, while you are, as it were, inside. You are then out in the Primary World again, looking at the little abortive Secondary World from outside.