Quite early on in Dune, we’re given this encapsulation of the power dynamics at play in the universe. There’s the Imperial Household, headed by the Padishah Emperor, the Great Houses of the Landsraad, the major political body, and the Spacing Guild, the entity that controls all interstellar travel. The Emperor’s power is grounded in status and the strength of his feared Sardaukar army, the Landsraad holds power through the political structures it wields and the treaties and conventions it defends, and the Spacing Guild maintains its power by exerting a monopoly on space travel. Three simple pillars of power.