Langer based his assessment not only on Hitler's repeated references to "divine providence," both in speeches and in private conversations, but also on reports from some of Hitler's most intimate associates that Hitler truly believed he was "predestined" for greatness and inspired by "divine powers." After the war Field Marshal Albert Kesselring, one of Hitler's chief military advisers, seemed to confirm the Langer thesis. "Looking back," he said, "I am inclined to think he was literally obsessed with the idea of some miraculous salvation, that he clung to it like a drowning man to a straw."