Equestria, a peaceful and loving land with but a few problems here and there like any kingdom. Co-Ruled by Princess Celestia and Princess Luna. Equestria, a symbol of equality and harmony.
Caballussia, a warring and spiteful land with but a few shimmers of joy here and there like any empire. Co-Ruled by the two most heinous demons that the pit has ever spawned. Caballussia, a symbol of inequality and disharmony.
Each the mirror of the other... Each with only one on the other side knowing about the other.