The Snake is one of two ur-beasts that hold up Moribund’s cosmology. They embody change, or a perfectly balanced half, or effect with cause, or the transformative power of death, crisis, natural disaster, political turmoil, etc. It really depends on who you ask. The sloughing of their skin creates the “memory of the world,” the fabric of reality, and at the end of days they will eat all the world and then themself. It’s thought that their warring with the Osprey (or dancing, or lovemaking, again depending on who you ask) is what gives motion to the world.
You can also meet them and it isn’t a huge deal. Reach into your local black hole and they’ll show up at some point to send you on your way (you really aren’t supposed to be in there, after all.) Ergo: Sinuk and Brun black hole drifting with the help of the Snake, in order to traverse huge distances in the real world… and, uh, not lose centuries in the process.