Option 1: There is but one universe and it's material.
Option 2: There are two universes, one material and the other spiritual, which often overlap.
There is a third option—a radical one— and Christian Science offers it to mankind along with an explanation of how its validity can be demonstrated: There is but one universe, one level of being, one kind of reality. And it is entirely spiritual. When it is the premise of our thought and reasoning it has deeply significant healing consequences in our life.
