The Rip In Space and Time

This is the place for any legends about Katastrophis and where it comes from. These are entirely legends since even if I make it fairly certain as to what goes down, there shouldn't be much of a way to prove any of these things.
It's not the Psiaic Dimension, which is semi-stabilizing to this creature. It is an entirely different facet of the universe which we have yet to successfully explore.