Why does professor mcgonagall believe harry will become a legend?

Professor McGonagall believes Harry will become a legend because of his unique and exceptional abilities as a wizard, particularly his status as "the Boy Who Lived" after surviving the Killing Curse from Voldemort. Additionally, Harry demonstrates courage, loyalty, and a strong sense of justice throughout his time at Hogwarts, which are qualities often associated with legendary figures. McGonagall also witnesses Harry's willingness to stand up against dark forces and his leadership skills, all of which contribute to her belief in his potential to leave a lasting impact on the wizarding world.