More or less, Xenosaga takes much of the symbols from the lore of all the religions, mythologys and folk tales from the collective histories of this world. From using the stars in the sky, to references out of the Bible, to philosophy such as Nietzsche, they have taken quite an ambitious stance toward their story.

I have no doubt there are probably several dozen, perhaps even hundreds of websites that chronical many of these parallels.

Take care all.