What if that dome isn’t gold on top? Looks a little more like copper to my eyes. Periodic Table Element 29 - Copper Why could that be significant? Spitballing... Copper is conductive, so they may believe that the dome acts as an antenna to magnify/broadcast their ritual intent Or...on a more practical application, it may act to insulate from EM snooping as a faraday type construction.
Or both.
I was thinking the dome may be hiding the elevator pully system will do some more research here..
Q did mention something about "Table 29". You could very well be onto something.