Incidentally, Raijin and Fujin are the Thunder God and Wind God of old Japan. Thus explaining the FFVIII characters' use of those particular magical elements.

I don't really see the resemblance to 'our' Raijin and Fujin, do you?
Actually, Fujin is often depicted as carrying a 'wind bag' on its back... sounds kind of like Pandemona from FFVIII.

Strange... I just tried to find the place where it siad they're siblings, but I can't. Can anyone clarify?