Look at what you should not look at. A feeling of anxiety is the sure and certain evidence that you should do this. Barker performed a disection at a funeral home, for the sake of understanding death at close hand. If you're driving a bus, you don't have that freedom. In other word, if your decisions are loaded up with family, friends, teachers and other critics you won't feel able to take a 'wrong' turn.
Every move becomes freighted with responsibility.
Pay attention to small details - they're important. Barker believes that drugs and other mind-altering substances will interfere with the creative impulse. His mood leveled off, but he couldn't write as well. The creative impulse seemed muffled. Your energy or impulse will be sapped.