What would the structure of the universe have looked like had it been left up to human imaginations? Judging off of appearances, one would not suspect that the sky was blue light reflected by air particles, that the earth was round and rotated on an axis, that day and night occurred depending on which side of the earth one was standing, that the earth orbited around the sun, that the sun was a giant fusion reaction eight light-minutes away. Some people in the past assumed that the world was flat; others, that it was contained in a dome-like firmament. Some cultures believed it was made up of layers or was just one of a multi-layered cosmos. Had humans created our universe, its basic concept may have been taken in a totally different direction from one made up of interacting atoms, energy, waves, strings, etc. Instead of matter obeying physical laws, perhaps physical occurences would be effected through the emotions or actions of the people that inhabited the universe. And physical occurences might not always have had a definite, core explanation as ours seems to have. The ancient Hebrews thought that their world resided in an earthen dome, or firmament, that sealed out water above that sometimes leaked out as rain or snow. It's not accurate at all with our modern understanding, but they deserve some credit. The aspects they included all seem to fit together and explain their position in the universe. Now look at a fictional universe, one of the dome-worlds of Bionicle:

A world supposedly created by semi-omnipotent, sapient Great Beings looks very similar to one conceived by ancient men. Perhaps the Matoran thought something similar to what the Hebrews did of their universe. Their assumption of being contained in a giant hemisphere would have been correct, because it was designed by beings with similar senses of wisdom.