Well yeah I don’t really know what the deal is I have just heard some conspiracy theorist talk about the cube being a running theme amongst the Illuminati.
I don’t think it’s connected to the new Jerusalem but sometimes occultist will put a religious spin on things.
For instance the Kabala went on to inspire the spellbook the Keys Of Solomon and other ritualistic magic books all taken from the Kabala with the idea stemming from Jewish lore that King Solomon could control demons.
The Order Of Oculus which some believe went on to inspire the Bavarian Illuminati and Freemasonry use these spells which also incorporate geometric shapes and degrees in the form of magical symbols.
Some people who are Atheist or Ufologist believe it’s all connected and that religion is a tool of the New World Order.
Of course they also fall into the Masonic trappings of pseudo history.
The Freemasons want everyone to believe they have existed since Mesopotamia, Ancient Egypt, and the Crusades particularly the Knight’s Templar.
Sometimes these people think the earth is flat too.