Pretty much, more specifically strong emotions are what creates things. "when you let your anger take over it becomes a dragon" is not just an analogy, that actually happens. Now moving forward maybe that is a tool to fight man in wall etc or why he exists in the first place, some remnant emotion from alberach or whatever his name is.
So do all the resources and weapons (and kaithe!) we get from there, it's kinda wild from a lore perspective. You could theoretically imagine pretty much anything there, create it out of thin air and canonically bring it back into the real world.
Whats also kinda crazy is that duviri isnt new, its been around for a long ass time. Albrecht Entrati has been there, created a lab, and then teleported away with it.
Is it actually confirmed that Albrecht visited Duviri and not just any generic void, I don't remember anything about that? I thought Wally has limited control in Duviri, just kinda creepin' from the edges, and Albrecht got into direct contact with him iirc.
So Duviri and Void is like a place for Creation Magic, like in FFXIV? Like Ascians were using before the sundering? So again I am playing MMO that has creation magics... damn... xD xD xD