The Apparatus is a powerful energy source and energy manipulator.
It has depths and roots throughout nearly the entirety of the City of Dreams, running directly through its core.
The Apparatus has created artifacts of incredible power, spawned Generators on the other side of the dream, and altered or even created arts.
The Apparatus is only made safe for use by a collection of Artifacts that serve as its tools of manipulation.
Without these artifacts, using the Apparatus is foolhardy at best.