"It was," he admits, "but I didn't want to burden you. As much as I wanted you to remember, I also wanted you to be able to just live, free from the tethers of our previous existence. You have more freedom here than you ever did back then. I wasn't going to be the one to take that away from you."

The crystal shines, as if to accept responsibility for doing that. For making her remember, for drawing the Dark Kingdom out of hiding in a quest to seize it.