When Harry grew up, I discovered that. When a child He witnessed the murder of their parents by the dark wizard whose passion for power. Lord Voldemort's. Who then tried to kill him as well. This spells Voldemort tried to kill Harry's reflecting back to his own. Harry survived by lightning shaped scar on his forehead and left Voldemort's disappearance. Harry becomes a living legend in the wizarding world. By order of wizards, the great and famous Albus Dumbledore's take Harry left the house of a relative Muggles who do not admire him and have a normal life like Wizards general. But because the spell Voldemort, who tried to kill Harry, reflecting back to his own. The result is a lightning bolt on Harry's forehead and half life of Voldemort's entry in the Harry inadvertently. And this is why Harry survived and is the key to this story.