Run.

When you stay with the Doctor, you never stop running.

Run. Run, and whatever you do don't stop. Stopping is bad. Stopping equals thinking. Thinking means remembering. Remembering is worse. All the innocents you couldn't save. All of them who you unknowingly didn't save. Don't stop, run.

Run. Run, whatever you do don't stop. When you stop you'll find yourself looking around. And when you do, it can become too much. Too much for nothing but a little human soul to bear. Trotting accross the Universe, your life in the hands of a 900 year old Doctor, it can be a little much. Don't stop, run.

Run. Run, don't stop. Stopping means you'll be waiting. Waiting for time to catch up for you, for the seas to grow still and the trees to cease their whispers. Don't stop, because it will never come 'till the end of your time. Your time shall not end, now. Don't stop, run.

Run. Run, don't stop. Stopping means death. Don't die. Don't stop, run.

Run. Run. Why? Don't stop, run.