You want to know what the Universal Self really means?
Imagine you are in a room.
There are 15 other spirit-people, both male and female, black and white, American Indian, Chinese and different ethnic mixtures.
There is, in reality, only one person in the room, the Universal Self, the One Reality, the "One Person".
There is no "other" in the room.
There are many faces, but just one person - The Universal Self.