How does the author use foreshadowing in Three Thanksgivings?

Mrs. Blake's statement about women helping each other also foreshadows Delia's triumph and good fortune. Before opening the club, Delia took in boarders to help her pay her mortgage interest. She disliked having to do this, but handled this necessary activity with patience and dignity. Renting rooms to strangers, however, was not enabling Delia to meet her financial needs.