When the mortal creatures of Eberron dream, they project their minds to Dal Quor. The outer edge of the plane is ringed with the "dreamscapes" where these night-time fantasies play out. Within this ring, nightmarish psionic beings known as quori dwell. Dal Quor (and the quori) is subject to a cycle of implosions and renewals. The plane is periodically destroyed along with all its inhabitants to emerge in a different state of being/age. Current age is an age of darkness due to the fall of the giant civilization. The whole quori/kalashtar war is about halting or furthering the cycle, as this renewal would destroy all the current quori.
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