I see...I'd known that destroying the Shadow caused the Palace to collapse. I guess it stands to reason that stopping the heart would have a similar effect...I wonder if that would be another reason I'm incapable of having a Palace, or if the important part is having a presence in the RG? Given the Metaverse is based in the consciousness of the people who exist in the physical world, it doesn't seem unreasonable to think that the important part is having your mind present on that layer of reality...