Are the Shards in separate dimension or are they physical locations?

[Iscah]

From what we see in the Omega raids, Omega was chasing Midgardsormr through deep space. But according to Cid in the Ivalice raids and the stuff we find in the Twinning, apparently Omega's power to travel was through the rift, and it came from another "dimension"?

Omega created an "interdimensional rift" in which it was carrying out its experimental battles, but I don't remember it being suggested that it came from another dimension itself. Do you have a direct source for that quote or are you just going from memory?

[YianKutku]

Omega created an "interdimensional rift" in which it was carrying out its experimental battles, but I don't remember it being suggested that it came from another dimension itself. Do you have a direct source for that quote or are you just going from memory?

Blame Cid.

I concede that "dimension" is not the term used, but "plane" is, and unless it's a repeated typo of "planet", the idea Cid raises is that Omega and High Seraph Ultima are both from "another plane".

There was some discussion when Orbonne came out, where people were just as puzzled by our assumption that Omega came from outer space suddenly being mentioned by Cid as "another plane".