Dear Traveler,
First, congratulations. You actually survived long enough to reach my tomb and—miracle of miracles—have the limbs to open this will. I envy you, truly. Now, I suppose it's time I reveal my closely guarded secret: the structure of reality as I've come to know it.
It all starts with:
Planets – Dense little spheres with cores that somehow matter more than they should. They're divided into stages, from the Forgotten to the Superior. Yours? Sadly, Forgotten. I placed this will here knowing no one would bother sorry dare to look.
Worlds – Clusters of planets, mostly the same rank, though some stray higher or lower.
Realms – Bigger dimensions containing multiple worlds.
Planes – Abstract, spiritual, or elemental layers, tricky to reach and teeming with supernatural weirdness.
Domains – Territories ruled by those with power enough to bend lesser beings.
Spheres – Massive structures holding multiple domains and planes.
The Void / Chaos – The outermost layer, the beginning and end of it all.
Exercise caution, and keep your mouth shut—least I get cursed and hunted even in the afterlife, and of course, I'm telling you this to keep your mega-existence safe.