"She said faintly, “Are you...real?” Amusement showed in his face. “Real?” he said. “Define reality and I can answer you.” He waved a hand. “Look into solid earth, into rock, and see the galaxies of all Creation. What you call reality melts; there is a whirling, a spinning of forces, a dance of motes and atoms. Some of them we call planets, one of them is Earth. Nothingness within nothingness enclosing nothing, that is reality. Tell me what you want, and I can answer.”"