Another notable thing from chp 45 was Fawkes’s role in getting Harry to take another shot at the Dementor—perhaps a phoenix is something like an anti-Dementor (peace of mind, rebirth, etc.)?
Another notable thing from chp 45 was Fawkes’s role in getting Harry to take another shot at the Dementor—perhaps a phoenix is something like an anti-Dementor (peace of mind, rebirth, etc.)?