" Epistrophe is the trope of obsession. It's the trope of emphasizing one point again and again. And it's the trope of not being able to escape that one conclusion, which is one of the reasons that songs are so suited to the idea of obsessive love, political certainty and other such unhealthy ideas. You can't reason in an epistrophic pop song. You can't seriously consider the alternatives, because the structure dictates that you'll always end up at the same point, thinking about the same girl and giving peace a chance. "

― Mark Forsyth , The Elements of Eloquence: How to Turn the Perfect English Phrase