in a compare and contrast essay, the goal is to give an in-depth view to the two subjects, the conflicts that both size repeal from one another, and the reasons why they have fueled their decisions and actions that have lead to that point. a persuasive essay is where you will attempt to give more recognition to the side that you support, however a compare and contrast essay is instead for the reader to make their implications upon.
The theme of a story is important because a story's theme is part of the reason why the author wrote the story. The author has a message he wants to share with readers, and he uses his story as a way to get that message across.