Zagreus isn’t actually a planet, it’s just that the planet on which it lives is only occupied by Zagreus: a single mind inhabiting every organism living on the whole world. Z receives visitors from time to time, and provides them—myself included—with bright, clean bodies to walk around in as a practical courtesy, but it’s a temporary situation only. When you breathe there, you’re breathing Zagreus, taking in its tiny microscopic selves, and that has consequences. If you stay for too long, you start to bleed into the mosaic of consciousness that is Zagreus all around you. You see visions, hear things. Zagreus sends shoots into you—it can’t help it. I don’t object because the nature of my identity is more resilient than most, but for other people it is alarming, and even dangerous.