"Ready." He stepped back, feeling his chest tighten at the sight of that console and of the blank room inside. None of it was real.

This would have bothered him, the last time. Real things versus not-real things was a very important distinction to Jack--was to any madman who was unsure of his reality. Being flung into the desert by Aku had been a case in point: confusion, fear, desperation had combined to cause him to hurt the one who had come to help him. Jack had to remind himself that this was not real. He was real. She was real. The vampires, the buildings, the streets--everything else---was not.

"We'll be the realest things in there, my love..."