Well, that leaves me with more questions than before then!
So, I'm not quite sure what to make of the story. It's clearly very "videogamey/don't ask questions" if this is what I think it is. At the bottom of the Ziggurat, after completing the Cathedral and after beating the heir, you realize you're stuck in an infinite loop which, I guess, stops once you complete ending B. You also learn that the island you're on is manifacturing the foxes (such as you), the power generators, etc. So basically, pretty much everything.
So, like, are the ghosts all different versions of the protag that either died to the heir, or were the heir? And ... who made the machines, the mountain door, the instruction booklet? What is even the purpose of the heir?
Like, I want to find the world fascinating, and maybe one could say the same questions could be asked about our own universe, so I might have to come to terms with the fact that this game world simply exists and isn't meant to be understood