How did Harry survive in Deathly Hallows wasnt it something with Lily's protection in Voldemort because Voldemort Harry's blood?

Answer 1

In the Deathly Hallows , the third time with Voldemort killing Harry ( it was in the Hogwarts' Forbbiden Forest) the spell had backfired on Voldemort again. It made Harry go in to see Albus Dumbledore in King's Cross.

After Voldemort casts the killing curse, Harry goes unconscious. Dumbledore's spirit leads Harry's spirit to a couple of seats and commends him for his bravery. He acknowledges that he is dead, but says that Harry is probably not. He explains, or helps Harry to figure out, that while Voldemort has just killed the part of his own soul that was embedded within Harry, Harry is still alive because Voldemort reconstituted his own body out of Harry's blood (in Harry Potter and the Goblet of Fire). Because Voldemort contains Harry's blood, as long as Voldemort is alive he preserves Lily Potter's charm, so Harry can't die at his hand. Thus, paradoxically, while Harry had to die before Voldemort could, Harry can't die while Voldemort lives. They have a double bond, with Voldemort's soul in Harry and Harry's blood in Voldemort.