The expression of death in Harry Potter is the soul. Specifically, after death, the wizard will wander between the underworld and reality by his own magic, and he can choose to be reborn or return to reality to become a ghost without a body. Ignoring almost anything in reality, magical objects can detect his existence and be hurt by some dark magic (like headless Nick petrified by the serpent in HP2). The death expressed in Harry Potter is actually telling people that death is just a new beginning, which can be proved by Dumbledore's words after Sirius's death and the dialogue between Harry and Dumbledore at the end of Harry Potter 7.

The essence of PS Abada's death is actually to force the separation of soul and body, and the soul is forced to reincarnate and let the target die. . . In fact, I think the meaning expressed in Harry Potter is actually hope, because no matter what the villain is, few of the seven books are dead. If you want to see other people's thoughts, I suggest you go to fan fiction, Post Bar and Library of Harry Potter.