That's a question he doesn't have a straight answer to. Does he even have one at all? Surprisingly, yes.

"I take it as it is, as long as it lasts."

Power? That would need to be one to turn back time and remake the past. There's none that can do this. Would it help if there was? Doubtful. There's a different path to tread right now. More difficult but also more promising. To leave the ashes, and the sorrow, and the pain, were they belong, in the past, and stick to the present.

"And I'm glad you are here. That's not something I expected to happen."

Ever.