There were thunderstorms early in the morning. These very real storms seemed to have something to do with a dream I was having, one which lasted quite long: I was going to Louisiana (or was already there) to discuss exceptionalism with the blogger known as z. I had nothing to say about it, but that didn't seem to be a problem because the assumption I had was that the ideas would magically appear in my head once I started speaking about it. The thunder seemed to provide the proper attitude of sturm und drang and romanticism that I needed to develop my Louisiana theory.
I call this a working dream, because it arose out of my work and then also provided a way of processing it unconsciously.