This dream—which pulls from one of the opening scenes in
Harry Potter and the Sorcerer’s Stone—reminds the audience of Harry’s own struggles in his childhood. Up until his 11th birthday, he was entirely without love from parental figures, and from that point on, he also had to contend with being a savior figure among the wizarding world. That he continues to have nightmares about his childhood, and about Voldemort, shows how he hasn’t yet worked through this childhood trauma.