“THERE IS ONLY ONE THAT EXISTS.”
In the world of the mind, there is no one but you, your separated self, because everything you see is a reflection of unconsciousness and values. Right and wrong, beauty and ugliness, or anything else. There is always a comparison there that which is better. In that world, you are the only one who creates everything in your world, consciously and unconsciously.
In the world of the oneness, there is only one consciousness. There is nothing else. Everything, including the unknown, always exists simultaneously, which means that anything can exist. There is not even a way to see right from wrong there. Therefore, for instance, if you would complain to someone means that you just express your resistance towards the fact that the person is just your reflection of unconsciousness and values, and that your ego is related to it.
After all, there is only one that exists in either world.