When you live with strabismus, the sky is often the easiest thing to look at. Nothing jagged about it. You can look at the starriest, smokiest sky with exhausted eyes and still, it won’t daze you, because there are no real edges in it at all. Just light or darkness hanging in the gossamer of clouds or the delicate mesh of stars. Easy. When we left Madrid after our first ten days in Spain, the sky was completely ordinary. Could have been the Florida sky, if you were to pour a dollop of milk into the latter, to get just a paler shade of blue. I remember looking at it, wondering if it would rain. It didn’t. The morning was awash with sunlight when we stepped into the streets we had come to love completely in only ten days: streets that are ancient, walkable, peopled, and suffused with the reckless zephyrs of cigarette smoke. We exchanged warm farewells with the concierge of Apartamentos Juan Bravo , and promised to return the following year. Then we hailed a cab and asked to be taken ...