Dhara: an archaic word meaning "foundation" or "support." Since ancient times, it is a name alternately given to our world as well as to the Material Plane as a whole.
But the true Material Plane is a vast expanse of cosmic sea dotted with millions of fantastic worlds. They range from magic–wasted desert planets to island–dotted water worlds; worlds where magic combines with advanced technology, while others are trapped in an endless Stone Age; worlds where the gods walk, and others that they have abandoned.
We once took our world and our place in the cosmos for granted. Then the fabric of reality tore under a force of unspeakable power, and nothing could ever be the same again.