
Joseph A. answered 11/19/19
Wise old Democratic Socialist English Professor
I assume you are asking about the last paragraph of an argumentative essay. Argumentative essays generally fall into two types, though there is overlap between the types and some essays are really a mixture of the two types. The two types are conceptual arguments and pragmatic arguments. Conceptual essays want you to think something and pragmatic essays want you do do something. And you can generally find a scheme underlying such essays that boils down to something like the following:
Pragmatic Essay
Opening Paragraph: Here is what I want you to do.
Development Paragraphs: Here is why you should do it.
Concluding Paragraph: Now let's get to work, and here's how.
Conceptual Essay
Opening Paragraph: Here is what I want you to think.
Development Paragraphs: Here is why you should think that.
Concluding Paragraph: Now that you think that, here's what it really means, what the implications of thinking that are.
You can see that the pattern is quite similar in both cases, and how in both cases, the concluding paragraph draws the reader toward reflection on the whole argument. There are many different tricks and techniques for accomplishing that goal, but generally that is the main point of, the purpose of, the concluding paragraph of an argumentative essay.