Board Thread:Questions and Answers/@comment-30827311-20170102075119/@comment-16674955-20170102191037

The fact that the tower "goes down" the higher the floor you "climb" is a common theory. The shinsoo problems would then be caused by something similar to the pressure when we go too deep underground in our world.

It isn't only the door that has interesting carving but the whole murals on the first floor.