Daughter had a dream in which Fio's mother appeared and told her to tell Fiorella she loved her. She also had a dream in which Fio's father appeared, and he was happy. Fiorella doesn't know much about the reality of dreams, but it warmed her to hear Daughter's reports. She always knew her mother loved her, and her father always was a happy kind of person so she hopes they are eternal.
It gives her hope for her own ultimate future, and everyone else's.