"Kind of." he was glad that, exact details be damned, she did seem to be following what he was saying, even if she very obviously felt it was completely outlandish. "Many years after your time, a new religion arises that says there is one God, who created all things on earth and within the universe as a whole. He had followers, angels, who lived with him in a sort of utopia called Heaven, but one of these angels, Lucifer, fell from grace and was cast away for his wrongdoings to a place that was basically the exact opposite of Heaven, all the horrorific, bad things dwelled there in this place called Hell."
He paused for a moment before going on to say, "That's the most basic idea behind the religious aspect of this war I can really give you. There were magical seals over hell that kept Lucifer and his demons trapped there, but these seals have since been broken and it's caused a disruption that allows this portal I mentioned before to pull people across time and space. I don't think anyone is exactly sure about how or why the seal chooses who it does, it's something you slowly learn to simply accept." Although Angel was fully aware that acceptance of all of this may be a bit harder on Gaia than some of the others. Everyone adjusted differently and in their own time.