Way back when, when Gale gave Walt the book, it is there, in that episode where Gale talks to Walt about Walt Whitman, he recites the poem, “When I Heard the Learn’d Astronomer,” and the next scene we see after their first cook together is Walt reading that very book. To be honest, at the time we came up with that episode two seasons back, we were not thinking about that book playing in the very important way that it plays. But having said that, it seems to fit right in. It was always in our mind that that was a gift from Gale, so we figured why wouldn’t he have written something like that?