Such a world of 'limits' such as sleeping, physicsl bounds, time, death and injury was necessary...so that mortals would learn to transcend these limits and become the stuff of new gods... But also so they would, through the imposition of enough limits (sensory deprivation) be able to become a new Amaranth.
This is why the original Aurbis was insufficient, because while Aedra were not bound by time or mortality, they were also relatively stagnant, and being unlimited they were not capable of transcending their limits.
Have I got the idea right?