Dreams (motif)
The motif of dreams throughout the play allows the reader to gain information about Harry's character and backstory. We are able to see key moments from Harry's life, such as Hagrid's visit to tell him that he is a wizard, but also moments that allegedly never occurred (like Petunia's visit to Godric's Hollow), which reveals the essence of his relationship with his Aunt. These dreams also serve the story; they tend to be a plot device to give Harry information about the whereabouts of Albus and when he is in danger. They finish with an ominous flourish as Voldemort's voice reminds the audience of the very real sense of danger throughout.
The Time-Turner (symbol)
The Time-Turner symbolizes the hope for second chances, as well as the danger of meddling with the past. An instrument such as the Time-Turner is illegal in the Wizarding World, which is why Harry confiscates it from Theodore Nott. We come to learn that meddling with the past is illegal for good reason. That same item was later used by Albus and Scorpius to fix the past, however it ends up causing chaos in the future. Ultimately, the characters use their adventures in time to come to peace with the past, and gain hope for the future.
Harry's Blanket (symbol)
Harry’s blanket is important because it is the only memory that he had of his mother and of his past. Holding on to that blanket gave Harry a sense of love and security, and he wanted to make sure that his own son felt that same type of comfort. Albus rejects the blanket as a gift, symbolizing how Albus rejects his father and his hero narrative. However, in the end, Albus uses the blanket as a way to send a message to his father, showing how the gift was indeed useful for their relationship after all.
Cedric’s Grave (symbol)
Cedric's grave symbolizes the loss of life at the hands of Voldemort, and the guilt that Harry has to suffer throughout his adult life. Cedric was one of the first people to die when Voldemort returned during Harry’s fourth year at Hogwarts. Harry always felt responsible for his death, and that of many other people, before Voldemort's final demise. In the end of the play, Harry takes Albus to the grave, so he could share his pain with his son, and also show Albus how to move on, now that he too feels the guilt at being involved in the death of another innocent Hogwarts student.
Harry’s Scar (symbol)
Throughout the play, Harry’s scar hurts several times, especially after a dream. Since the first Harry Potter story, we learned that his scar inflicts pain only when Voldemort is active. It serves as an alarm throughout the piece than danger is coming and foreshadows the conflicts to come.
