This is a song from a Japanese game series I know little about, but I find all the soundtracks to be quite interesting due to the many overlapping vocal tracks and the conlang of Hymmnos
used in the composition. Some of the songs are quite gentle and peaceful, but many have a great many poetic turns of phrases that work well for things that are deeply intertwined with humanity but not human themselves- gods and angels, that sort of thing. Angels that have no patience for free will and take mental control of humans to use them as tools to destroy evil. Humans abandoning animism and creating gods of power and domination by their demands for granted miracles that served desire rather than need. Gods who view extinction event meteors as blessings that end suffering. Things that are understandable but hard to relate to, rather than full on lovecraftian horrors, and described poetically. I think that could make for good 'ancient lore' tidbits and religion.