The ladder of abstraction
Here's the whole idea. Every good analytical sentence climbs the same four rungs. When I write "this is descriptive" in the margin, it means you stopped on rung 1 or 2. When I write "so what?", it means you skipped rung 3. You don't need fancier words to climb. You need the next rung.
Watch one climb happen
Bennett writes Hell no. I have eyes.
rung 1 Two blunt sentences, two and three words long, in a colloquial register. rung 2 You hear a plain man refusing to be intimidated, and because the sentences are so short, he sounds like he's already decided. rung 3 That refusal is the column's opinion in miniature: you don't need experts to judge art, you need eyes, and that's exactly why an ordinary newspaper reader is willing to follow him into a history lesson. rung 4
If you're stuck on a rung
Can't get off rung 1? Say what kind of thing you quoted. Is it a question, a list, a short sentence, a comparison, a color, a font? That's rung 2. You don't have to know the Greek name.
Can't get to rung 3? Finish this sentence: "When I read this, I ______." Then swap "I" for "the reader". That's rung 3.
Can't get to rung 4? Look at the guiding question. Finish this: "This helps the writer ______ because ______." That's rung 4.
A test for anything you write: which rung is this sentence on? If two sentences in a row sit on the same rung, climb.