Let me answer some of your questions Q?
>>>What is the keystone?
A: it's what holds the ARCH togther, as n the Merovingian arch symbol, and the Merovingian bloodline family is the keystone that holds the entire structure of the cabal in it's place. Q drops have many layers of meaning, this is just one of the layers, one interpretation.
>>> Does Satan exist? Does the "thought" of Satan exist? Who worship Satan?
A: Now do i really have to go and say it anons, the bloodline families worship him along with their minions. Mostly the Merovingian bloodline.
>>> What is a a cult? Epstein Island?
A: The worship of satan/ cult was taking place at Epstein island. Anons already figured out that one.
>>> What is a temple? What occures in a temple? Worship?
A: a temple is not just a place of worship but it's also and mostly a place to "give" = "present" sacrifices to the god your worship.
>>>Why is the temple on top of the moutain? How many levels might exist below?
A: anons already know the answer to these questions.
>>> What is the significance of the colors, design and symbol above the dome? Why is this relevant?
A: Anons already know about the design and the symbol of the owl, but they didn't figure out the colors yet. The colors of gold, white and "royal"blue (some say navy blue) are the "official" colors of the Bourbons bloodline as in the french royalty = the french merovingian side of things which Payseur was their heir. It is relevant because it's telling us that this place = Epstein island is run by the Payseur heirs which are descendant of the Bourbon kings.
>>>Who are the puppet masters? Have the puppet masters traveled to this island? When? How often? Why?
A: the puppet masters are the CLINTONS. They are Jeffrey Epstein's boss. They are the owners of business, Epstein just runs it for them. Yes, the puppet masters did travel to that island along with Alan Dershowits and Kevin Spacy and many other celebreties and politicians on board of the Lolitta Express. All that anons have to do is to look at the plane logs to know the details.