"I wish I had gotten back to see the restoration of the world," Lexaeus said. "It was not an opportunity I expected. We were all hosts of the dark in the same way you were, at that time; going home was impossible without healing." It was something that had been difficult to come to terms with, when he'd first learned that part of his home had, in fact, survived, even in a fragmentary way. Cid was an engineer; he could have stayed and attempted to fix things, but Lexaeus could only suppose that a world with its heart broken wasn't a world that could truly be fixed.