I take dictation from that place within my mind that knows what to say. I think most good writers do. There is no such thing as waiting for inspiration. The idea of "diagramming" an essay in advance, as we are taught in school, may be useful to students but is foolishness for any practicing writer. The Muse visits during the process of creation, not before. - Roger Ebert
Now if that doesn't get you off your ass to start writing as it did for me, I have nothing else good to tell you.
Here's the entire journey entry: I think I'm musing my mind.