The spirit world completely overlaps the physical world, extending far beyond it. To visualize this, imagine a blanket draped over a phone, the two are connected, with the blanket encompassing the phone entirely. There is no place in reality that isn't linked to the spirit world, except in rare cases where the connection is forcibly severed by a God. Even in the Forsaken Land of the Gods, where the Evernight Goddess conceals the spirit world, its presence persists. This is clear as individuals continue to access and gain spirituality there. Here are 5 scans that confirm the spirit world's overlap with the material world:
scans
Even if this were true, it’s ultimately irrelevant since many 1-A realms are often described using spatio-temporal terms. This isn’t a debunk. Here’s what Ultima had to say about it:
https://gyazo.com/a282e3ca222cc0075a362603d91828f2
Also further proof is that the spirit world is literally a sea of information and information in the LOTM verse is not restricted by dimensionality:
https://gyazo.com/776ddcecb6af1d4c317ae700913db443