Luke nodded. "Evil is a pervasive thing. It gets inside you... never really lets you go." He thought of how he'd killed Lumiya out of vengeance, maddened by grief for Mara. That had tainted him and left the horrible task of stopping Caedus to Jaina, who never should have had to bear it.

"The Force--it's energy that flows from all living things. Jedi--people like me, who can sense the Force and manipulate it--get their strength from the Force. Some are more adept at it than others, but that's the idea of it."