“On the night Lord Voldemort went to Godric’s Hollow to kill Harry, and Lily Potter cast herself between them, the curse rebounded. When that happened, a part of Voldemort’s soul lached itself onto the only living thing it could find. Harry himself. There’s a reason Harry can speak with snakes. There’s a reason he can look into Lord Voldemort’s mind. A part of Voldemort lives inside him.”