Without the why, you probably have only come up with an observation—that there are, for instance, many different metaphors in such-and-such a poem—which is not a thesis. First, it allows the reader to get excited about what, specifically, is coming their way. Normally you will continue to refine your thesis as you revise your argument sso your thesis will evolve and gain definition as you obtain a better sense of where your argument is taking you.
Insert your thesis statement as the final sentence of your introductory paragraph. Michael Dukakis lost the presidential election because he failed to campaign vigorously after the Democratic National Convention. Compare this original thesis too general with three possible revisions more focused, each presenting a different approach to the same topic : Original thesis: There are serious objections to today's horror movies.
This broad thesis statement runs the risk of allowing you to go off on several tangents. If yours doesn't, then it's not an argument—it may be a fact, or an opinion, but it is not an argument. And what about the fall of Hitler? Can you finish the sentence with any one of the items? In this persuasive thesis statement, you see that I state my opinion the best type of sandwichwhich means I have chosen a stance.
Source Using One Topic to Write 8 Questions Here is a sample of the different kinds of essay questions you can come up with using the topic of "Horror Movies.