Some runes were things that Walker's mind could not wrap around. They seemed to be forming as if that was just the way of existence. As if the runes that he saw had always been part of what he knew but he could just never see them. '
As if to make him prove that to himself, he saw that some of them faded to the point that he would not realize that they were there. The thin lines of metal making the cage around the eternal orb were clearly covered in runes just a second ago. But they had faded because he could not understand the manas within them.
Each of the six lines of starving steel were strong. They were made of this starving steel to ensure that the manas drawn in would be more. But the six large and thicker lines that had contained many runes he could not fathom. They had been enough so that he would be able to understand that they were unique and that was it.