To relight is to stop using one word and start using another word. It plays on the idea that we can be enlightened about something like nationalism, but that we reckognize that this enlightenment is miscoloring our world, and so we ought to remove this word from our language. However, oftentimes it is not possible to simply remove a word, because it is a word that is used to refer to real world phenomenas, and so we have to find another word that can replace the miscoloring word. In this deem, we have unlighted nation and enlightened root, thus relighting away from nation towards root. Think of it like a spotlight that is moved from one word to the other.