"Only that I think that Harry has been in love with you his entire life, before he even met or knew you," Lily replied. "You bring to him everything he lacks ... coolness, logic, reason. You make him think, whereas normally he lets his heart and passion run away with him. And you ... he stirs your heart, lets it dominate where your wonderful mind usually has control. Don't you see? You are two halves of a greater whole ... one mind, one heart ... and together you make one soul."