
From my interpretation, their names carry power. So in order to address someone by their name, you must be in equal or above in status compared to them. That’s why they were so shook at the end when Makoto addressed Fjord because he was a human and has only been in hell a few days. Although J told Makoto his name in the Earth world, Makoto can’t say J’s name in hell without his soul being torn apart since J is in such a high standing of power.

I think they mean that with the right words and sentences, you can manipulate and break others' spirits. I believe that he says the higher ranking demons are smarter, wittier, and know how to use words to alter people's thoughts and can do it like a piece of cake, something that fools and lower ranking demons cant do
can someone tell me what they mean abt the words thing