Integration.  That is the goal.  Knowing yourself as both human and spirit, both Source energy and Its extension, both left brain and right brain, both masculine and feminine.  You are all of that.  You are light and darkness.  You are.  When you know yourself to BE, and to be all of that and no-thing at all, that is a state of integration.  Why would you want to be in a state of integration?   How do you like feeling lost and alone?  Need we say more?