A sun could be a homonym for son, the son being the spawn of the father or in this case the spawn of a fertile imagination. The running man is attempting to flee the darkness and thus regain his place in the sun becoming whole again,
Only one score fits the first clue. THE DARK HALF! COMPLETE!
How could my prognostications be wrong. I applied the most rigorous analysis known to man and I am as reliable as pollsters. Oh, wait...