It could be. There are lots of different worlds apparently, these things just kinda happen. Or it could be your world in a different time. I mean, it's probably still a different world, I feel like most of us came from different ones, but same planet, similar world, different times.
Yeah, it's considered a holy book. The final book of it, Revelations, talks of an Apocalypse. Lucifer, Satan, the Devil, whichever you prefer. He's kind of a jerk and the reason you have to filter against evil. He wants to use his demon race to wipe out the whole of humanity. Which is stupid, I know, but there you have it. And you, along with most of the people you'll meet here, were brought here to attempt to fight that final battle against him and, hopefully, win.
So...wow, that was long, sorry! Hi, I'm Josh Levison, nice to meet you, Susan.