It’s purifying, it’s refining. Making it precise. Precision is one of the basic elements of poetry. My own rules are very simple. First, cut out all the wisdom; then cut out all the adjectives. I’ve cut some of my favorite stuff. I have no compassion when it comes to cutting. No pity, no sympathy. Some of my dearest and most beloved bits of writing have gone with a very quick slash, slash, slash. Because something was heavy there. Cutting leads to economy, precision, and to a vastly improved script.