In Two Minds   It’s three a.m. and black as pitch when the minds in my head begin a fight that tosses me from side to side. The stern one dreads the day ahead, reviews a list of pressing tasks and resurrects embarrassment, quick ripostes I failed to make, anxiety for friends at risk.   My dreaming mind will show a film whenever it can seize the chance: troupes of actors fill the screen in fleeting guest appearances. The plots are often quite obscure with little shape, beginning or end but entertaining twists and turns; riddling symbols come…