my opinion.
have you ever written a five paragraph essay? those dreadful evil things they made us write way back in high school? first you give a theme for what you're going to say (in the begining god created the heavens and the earth). then you have three paragraphs defining specific arguments or examples (insert day by day junk here). then you have a concluding paragraph summarizing what you did (chapter 2).
but then i'm just a n00b.