Haw was afraid more often than he liked to admit, even to himself. He wasn't always sure what he was afraid of; but, in his weakened condition, he knew now he was simply fearful of going on alone. Haw didn't know it, but he was running behind because he was weighed down by fearful beliefs.
Haw wondered if Hem had moved on, or if he was still paralyzed by his own fears. Then, Haw remembered the times when he had felt his best in the Maze. It was when he was moving along.