I think you’re overthinking this.
And I did. I thought “He looks very comfortable here.” And I thought “you could do a story about a kid raised in a cemetery by dead people…” and I thought, “It would be like The Jungle Book. I suppose it would be The Graveyard Book.”
I don’t think that Bod is anything at all like Michael, or that I’m anything like Bod’s birth father, Mr Owens (his adopted father) or Silas (his guardian), except in the way that the person writing the book is, of course, all of the people in it.