I let my writing go where it wants. And then build the structure around it after the fact. I throw the words in my mind onto paper like a drip painter throws paint onto canvas. Then after that I see what I’ve got in my head and how it looks rendered in the real world and if it makes sense. Maybe it doesn’t need to make sense and comes out beautiful and I leave it. Maybe it needs a little adjustment at the edges to make it digestible by a general audience, if that’s my goal. Maybe it’s garbage and I leave it alone and move on.