
Well, if you did want to be from XI specifically, there is the idea that one would have to be a master of magic akin to Shantotto to come out of the other side intact. if the event had anything to say about it. It really depends on what kind of character you want to be. Normally I'd say that ordinary characters tend to make a more interesting story than main hero x/y/z, but let's make an exception with yours for the sake of argument.
Otherwise, you'd have to enter through the void, and somehow have a portal open up from the realm of XIV which beings such as the Cloud of Darkness or other void beings of similar power are the only ones able to do so far as far as I'm aware (I could be wrong in this, but that's how good my memory is right now). Or have some god-like being transport you to Eorzea, but with what price?
It's not really a question of how as more of why you want this story. I'm not a big fan of these stories, but to say it is impossible is false. It's just the matter of circumstances being so out of this world that simply going 'I'm from Vana'diel because blahblahblah' immediately would drive most people away from how absurd it sounds IC. Does that mean it isn't interesting OOC? Not necessarily if it is well written. It's just a high-fantasy theme, which may or may not work with others RP.
Edit: Actually forgot about Gilgamesh, see above.
Otherwise, you'd have to enter through the void, and somehow have a portal open up from the realm of XIV which beings such as the Cloud of Darkness or other void beings of similar power are the only ones able to do so far as far as I'm aware (I could be wrong in this, but that's how good my memory is right now). Or have some god-like being transport you to Eorzea, but with what price?
It's not really a question of how as more of why you want this story. I'm not a big fan of these stories, but to say it is impossible is false. It's just the matter of circumstances being so out of this world that simply going 'I'm from Vana'diel because blahblahblah' immediately would drive most people away from how absurd it sounds IC. Does that mean it isn't interesting OOC? Not necessarily if it is well written. It's just a high-fantasy theme, which may or may not work with others RP.
Edit: Actually forgot about Gilgamesh, see above.