How does the author use foreshadowing in The Romance of the Forest?

In Chapter Seven, Adeline's situation seems to go from bad to worse. Although she at first suffered only the unkindness of Madame La Motte, she is now accosted by unwelcome suitors, warned of a threat against her safety, plagued by terrible nightmares and threatened by the return of her cruel, unloving father. One of the more interesting aspects of Adeline's trouble are the dreams that she has. These dreams both hint at actions that took place within the abbey in the past as well as foreshadow the idea that these past actions may become important to Adeline's future.