On the days when it's tough to get out the door, I remember what it felt like to stamp out my last cigarette. I think about how good it feels when I have a rhythm going and have 'disappeared' inside the run. Or how good it feels to slow to a walk after finishing the goal run for the day and having that sense of accomplishment. I think of the last 800 meters of the marathon – it's a holy time, in my opinion – and knowing that all those runs I said yes to, and didn't avoid, got me there.