This graphic attempt to convey the notions of subspace, or the architecture of volumetric space.
It is easy to take space for granted, like we assume a fish takes water for granted. Indeed, were there no water, there'd be no fish -- likewise for space and ourselves.
It's not so easy to wrap one's mind around non-volumetric reality, though some are familiar with 'Flatland,' a fictional 2-D world. Space normally provides an habitat for objects to occupy, but under certain conditions, intense gravitation does not allow space to exist as we understand it. Under those conditions, space is presumed to collapse. The Big Bang cosmological theory proposes that the universe as we know it evolved from a singularity; otherwise there was no space nor time. From this we may infer that some 'thing' or force exists that gives space the rigidity to resist gravitationally-induced collapse. Some physicists have proposed that hypothesized (but undetected) "dark energy" fill this function. To this point, physicist David Bohm once remarked in The Holographic Universe that "every cubic centimeter of empty space contains more energy than the total energy of all the matter in the known universe." We propose that this role is fulfilled by an architecture, hypothesized in the above graphic.
Complementarity is depicted via the axes of 'opposing' color pairs: red and blue, yellow and green. These opposing pairs span opposite corners of the bounding box.
The nexus of the four axes at the center of the figure suggests a combination of the four axes that intersect there. This is perhaps where the proposed structive force emerges.
We note that the central nexus is adjoined by the apexes of six square pyramids, the bases of which comprise the faces of the bounding box and its enclosed cube.