Lyric discussion by islanduniverse 

Cover art for Northern Lites lyrics by Super Furry Animals

I think it is about someone who actually was born in a manger -- or said to be born there -- and that's God. And it's about how God or the universe or nature (I doubt it matters much from the perspective of SFA) is now destroying everything on earth through global warming, fires, and lots of other Ten Plague-like calamities. Very pleasant music to go with such destructive lyrics.