I meant that figuratively, not in the sense of the actual X, Y, and Z rules from Higurashi. Basically, if true (I seriously doubt it's completely true, by the way), the gold text theory should explain the process that creates the game worlds we see.
@LyricalAura: The theory has been changing a bit thanks to that discussion with Jan-poo, so it isn't all summed up in one place at the moment. Hopefully, I'll find time to do that soon, but working in the EP5 translation is a bit more urgent now.
Edit:
This is sort of where it started though.