How a ripper would define a higher dimension is totally irrelevant for all intents and purposes.
Not really, it's supposed to be a higher dimension compared to all things with souls.
The problem is that there are no interpretations here
There are always interpretations
it is as direct as you can get "A basic nine-dimensional form, generally speaking, it originates from and returns to a higher dimension beyond the Eightfold Path."
I mean I agree that the soul is 9D when it is born. Also my bad in writing "comes from", but that doesn't really change my point.
The soul is born and gets back there when the whole samsara cycle that the eighfold path references is completed. It doesn't need to be inside that dimension to be as it is.
Alright so lemme make it clear to you what I mean, there are 2 scenarios:
1) There is a specific realm in the 9th dimension where the souls are born and where they return to upon "death", this means that some demons' souls never leave this realm during their lifespan if they spawn in just the right place and other demons' souls constantly enter and leave this realm (while still in their original state) while they're hunting or whatever. Which contradicts the statement.
2) The entire 9th dimension is where the souls are born and where they return to upon "death", this has more backing since I presume there are infinite demons and there would thus need to be infinite space to hold all those souls (and the scan never talks about a realm in the 9th dimension either). This means that every demon or human who exists contradicts the statement under your interpretation, since their souls never leave the higher dimension.
Then from this I conclude that the only way to make the statement work is to deduce that souls lower their dimensionality, it being stated that all humans and demons have a soul is fine and all, but later context tells us that the soul lowers its dimensionality.
Demons have names, said names are the concept of their very own existence. This concept is the basic principle that predates the existence of the demon world. These names are only part of the soul.
This is something human souls don't have.
Not what I meant, I asked how demons spawning as souls works, is it the same as regular demon spawning?
You can't, you literally can't when the description straight up says the soul is a basic nine dimensional form that everyone has, including humans. Saying it changes for some unknown reason is not gonna fly.
"Mxyzptlk is a fundamental fifth-dimensional being, he originates from and returns to a higher dimension beyond time." Under your interpretation Mxy would always be 5D, even when on earth, you got my point?