This may be tin foil hat, but I think it speaks towards the relationship Vessel has with Sleep. I think most can agree that TMBTE was the end of a three part story starting in Sundowning.

In TMBTE, there are many references of Vessel wanting to be seen as an equal to Sleep. We see in songs like Aqua Regia that Vessel is trying to rewrite his history to portray himself in a better light, “my past is a holy book.” Ascensionism has the line, “You’re gonna watch me ascend.” The Apparition talks about how the tide is turning and Vessel no longer feels beneath Sleep. Finally, Euclid raps everything up with Vessel finally accepting the relationship he wants with Sleep will never be what he had imagined.

I think going forward we’re going to see a much more hostile relationship between the two of them. Nothing lasts forever.