THE SECRET OF EXISTENCE: “ANOTHER EARTH”

What would we do if we came across ourselves all of a sudden? Yes, we sometimes say things to ourselves but what if we see ourselves facing us? What would we say, would we want to say something, would we be scared and run away? Not like looking at the mirror to our reflection, the same of us that we can touch, as alive as we are. We, living in a parallel world, a parallel we. Are we really one and only?