After the eight warriors descended to the second floor, Arthur was more at ease. He could now focus on fighting Nameless, but he needed to stabilize space first.
Jizo explained that the interdimensional space was the emptiness between realms. The universe had many layers, and the further those layers were from the center of the universe, the lower their level was. The space between those layers was too dangerous for humans to traverse it, but Nameless had no problem with that.
"What is the center of the universe?" asked Arthur after the guardian explained; as he tweaked through the tower, channeling its resources toward stabilizing the interdimensional space outside.
"According to what we know, there could only be one thing at the center, spewing creation throughout the universe: the wheel of creation."