What does this quote mean from Tradition and Individual Talent by T.S. Eliot: “No poet, no artist of any art, has his complete meaning alone. His significance, his appreciation is the appreciation of his relation to the dead poets and artists. You cannot value him alone; you must see him, for contrast and comparison, among the dead. I mean this as a principle of aesthetic, not merely historical criticism...What happens when a new work of art is created is something that happens simultaneously to all the works of art which preceded it...The poet who is aware of this will be aware of great difficulties and responsibilities.”