As Valentines Day approaches your thoughts may turn to poetry, as have my own. Three things fascinate me regarding poetry and the mind, and I shall set them down here. The Cadence: First is the ability of the simple arrangement of words to churn the imagination. The order of any commonplace sentence can lie inert or bubble to life. By example, I was thinking about my friend Sam, a WWII vet, and his recent funeral: “We buried him today. It was raining.” Not much there, but when I happened to think of “We put him in the ground today, in…