Actually that state is easy for me to visualize. To me it is the state that was before substance and form that we exist in now, and is the state that is beyond the event horizon of our universe. That state is "Potential". "Potential" is Infinity for Eternity. An "Action" gave Boundary and Motion to "Potential" and is still doing the same off in Infinity for Eternity.
I agree very much that the event horizon of our Universe is of Angular Momentum. I feel that our Universe is expanding at this event horizon, giving "Boundary to Infinity" creating Space, and giving "Motion to Eternity" creating Time. This is the Space Time Continuum we exist in.
It is the incrementation of "Potential" that leads to substance and form.