GUIDANCE   Wonder what my life would be like now if the family had not moved when I was in seventh grade, or if I had not married the gay fellow, or if I had gone to college, or if I had not moved from a few cities at the times I did: Who would I be, and what would I be doing? Ever wonder that? That's what we talk about here today. Shifts. Changes. “You can't go back home,” they say. Maybe your parents die before you realize how wise they were. Maybe you figure out you should have gotten mama ou...