>>56829064I see it as a reference to the Hindu mythology of a universe within a universe, with the metaphor of the world on a turtle and this turtle is on top of another turtle and this goes on to infinity.
Or Stephen King's macroverse:
The Macroverse in King's writing is described as a great desert of sand as far as the eye can see, with each grain of sand being its own reality/universe, and at the center of them is the DT. The realities are also described as "levels" of the tower.
