[Costigan lifts the hand not holding his coffee to rub at his face. He allows his eyes to drift closed as he thinks of what to say, of how to put it. The things he hates saying, but he feels like maybe the kid needs to hear.]

I mean I don't know what I believe in, alright? [He says finally, with a sigh, clearly not keen on admitting as much.] Jack Frost, Saint Jude, any of it. I know that God exists. I can never not believe that. But the rest of it?

[He shakes his head and, for a second, genuine pain appears on his expression. Then he quickly controls it.] I don't know, Jack.