This was from the Future Salon:

Outer Space (the world around us: science, the natural and built environment, universal systems theory)

Human Space (the human world: our bodies, behavior, minds, human systems theory)

Inner Space (the world below: energy, small tech, computer "bodies", inner systems theory)

Cyber Space (the virtual world: computer "behavior", computer "minds", cyber systems theory)

Hyper Space (the world beyond: new paradigms, phase transitions, hyperphysics, hyper systems theory)

Relationships are the crossing of boundaries between things.
This happens within our selves and between others.
Maintaining right relationship and boundaries between these is what helps energy flow well.