Well, I actually doubt ours leads to any sort of heaven; one's soul simply returns to God when they die, and while I have theories, I genuinely have no idea what He does with it. But our God is also the sort that will rip off limbs and tear out organs in exchange for bringing you through the gate and then depositing you back into the world from whence you came, despite you not ever asking for Him to do so - mortals generally don't enter His domain unless they've done something to warrant it, and it's generally seen as a punishment for those arrogant enough to create abominations against nature, regardless of whether they knew they were doing so or not.
[...welcome to FMA theology, where everything's fucked up and your intentions don't matter! Also our God is...kind of a dick.]
Anyway, the point is that it's impossible to resurrect the dead once their souls have passed through the gate; the most we can really do is reanimate their corpses with souls that have yet to leave the mortal world - basically, taking a different soul entirely and forcing it into a dead body or an alchemically-created shell. Zombies, essentially.
Honestly, if you change the part about "Gypsy magic" into "alchemy," that's more or less what the leaders of my country were going to try to do - use an invulnerable army of the dead to assist them. Unfortunately, I'm not in any sort of position right now to know how that went, but I can't say that I foresee it ending very well, either...
[Text]
[...welcome to FMA theology, where everything's fucked up and your intentions don't matter! Also our God is...kind of a dick.]
Anyway, the point is that it's impossible to resurrect the dead once their souls have passed through the gate; the most we can really do is reanimate their corpses with souls that have yet to leave the mortal world - basically, taking a different soul entirely and forcing it into a dead body or an alchemically-created shell. Zombies, essentially.
Honestly, if you change the part about "Gypsy magic" into "alchemy," that's more or less what the leaders of my country were going to try to do - use an invulnerable army of the dead to assist them. Unfortunately, I'm not in any sort of position right now to know how that went, but I can't say that I foresee it ending very well, either...