i saw a theory somewhere equating the player to the Angel, and "The Angel's Heaven" as essentially being our castle town, which made me form my own schizo theory
are Deltarune's and Undertale's prophecies ultimately the same? in undertale, the angel comes down and leaves the underground empty either by dooming everyone or freeing them
in deltarune, "the Angel's heaven will be banished". the castle town is basically a little slice of heaven for the gang, where all the whacky enemies they spared live happily. is our heaven't banishment the same as the emptying of the underground?