I have horrible headcanon Brendol started up his Commandant's Cadets in the F.O. But Hux wasn't allowed to join because he's too high profile and because his father didn't want to show favoritism. Not that the other cadets believed that so Hux prolly had to put up with more than his fair share of bullies and people trying to take him out either because of jealousy or shenanigans with his father. So maybe he has a nightmare about being hunted by some of his schoolmate bullies and being trapped?

Yeah, I like the idea too. I need to ask if say the visitor would actually be able to share in the emotional impact of the dreamer. Like will Hux actually EXPERIENCE Maketh's horror and agony at watching these people die? I think that could be interesting but lemme come back to this when I have an answer?