Mother Courage’s foretune-telling also blatantly foreshadows the play’s conclusion: all of her children will die. The Sergeant’s concern demonstrates that, despite all his pomp and show, he is actually terrified of the realities of war—which will require him to face his mortality. He tries to avoid this fate through commerce, which reflects back Mother Courage’s attitude toward life. It’s also a convenient metaphor for both capitalism and war, which Brecht presents as foolish, doomed attempts to cheat fate for personal advantage.