In this Canto death skirts through the heavens of the vital and mental worlds where the gods are strong. It means that the journey is taking place through the skies of the mind where light breaks through bringing hope and light. Here we see fragments of thoughts and deeds and feelings driven by an inspiring ideal. These are heavens created by human thought in its stretch and search for an ideal life.
Death takes Matter to be the origin of creation and hence the final determinant of everything.