Whom does Gabriel encounter as he makes his way into Weatherbury in Chapter 7? What does this encounter foreshadow?

Gabriel encounters Fanny Robin as he makes his way into the town. She is poor and meek, and offers little advice to the questioning Gabriel regarding a place to lodge for the night. However, for her kindness, Gabriel gives the girl a coin. This foreshadows the importance Fanny will later play in the plot.