Per Enix lore, all the worlds in which everything happens in any Square Enix title (and apparently Disney animated title) exist connected by the same universe or parallel universes. There is a whole 999/Schroedinger's Cat appeal. The things that tie them together are the existence of crystals, warriors of light, and the very real struggle between light and darkness. Each world is very different but also very similar.
If you look at Dissidia, heroes and villains from all the different Final Fantasy worlds (including Shantotto) are pulled from their respective worlds to do battle.
In Kingdom hearts, the Disney worlds are accessible by space-ship.
In Bravely Default, we see the Warriors of Light traverse the boundaries of parallel worlds that are nearly identical to their own.
And then there is Lightning. At the behest of a goddess, Lightning existed within a plane that is both separate from all worlds and connected to all worlds.
In short, traveling from XI to XIV is not impossible, but it is something only a Warrior of Light, a being bordering godhood (O-hohohohoho!), or a being by the grace of a god can accomplish. Claiming your character has reached these levels or had that kind of interaction is incredibly reaching.
Afaik, only the Warriors of Light have ever "accidentally" fallen into the void and landed somewhere new. Because it's never purely coincidence- there is always a higher entity pulling the strings.
If you look at Dissidia, heroes and villains from all the different Final Fantasy worlds (including Shantotto) are pulled from their respective worlds to do battle.
In Kingdom hearts, the Disney worlds are accessible by space-ship.
In Bravely Default, we see the Warriors of Light traverse the boundaries of parallel worlds that are nearly identical to their own.
And then there is Lightning. At the behest of a goddess, Lightning existed within a plane that is both separate from all worlds and connected to all worlds.
In short, traveling from XI to XIV is not impossible, but it is something only a Warrior of Light, a being bordering godhood (O-hohohohoho!), or a being by the grace of a god can accomplish. Claiming your character has reached these levels or had that kind of interaction is incredibly reaching.
Afaik, only the Warriors of Light have ever "accidentally" fallen into the void and landed somewhere new. Because it's never purely coincidence- there is always a higher entity pulling the strings.
Art by Berrod!