Blackholes

So, let us imagine there is energy,
outside of the system,
On a different mass or pressure gradient
Outside of space would be
the area that space has expanded into

The expansion of space would
Cause this system to push back
Hey bitch
You are making your space out of my space
Even if in a different dimension

Like adolescent space pimples
The energy in the space being expanded into
Would find weaknesses in the bubble
The differential existential pressure
would burst at galactic size

If space is expanding into temporal dimensions
if a black hole is the energetic equivalent of a pressure gradient,
changing the energy of mass,
what is it changing in to?