What is the purpose of the figurative language in the sentence below from the last paragraph?

Where is the main header supposed to be placed, when formatting a transcript ? how many spaces before the body of the dialogue ? two three or four ?

Before ending this lesson, take a moment to review an informative research essay you have written. you’ve probably already written a conclusion to the essay. but is it the best conclusion it can be? does it properly summarize the main subtopics of your essay? does it state in one or two sentences the “so what” of your topic. if your topic was abraham lincoln, your essay shouldn’t be just about abraham lincoln. it should answer, “so what about abraham lincoln? ” take five or ten minutes, and looking only at that single paragraph, revise your conclusion

This passage from chapter 4 of story of my life is an example of which story of plot