The real self is who you are when you're at home, when you're comfortable, and the false self is what you're pretending - and the reason you pretend is because you want to create a character for the surroundings you're within.
I think it is all about creating characters, mixing them up with the stars and the light-years, and coming back to Earth, because we're from this universe. We're not just New York or London; we're stars.
When you have a lot of fake selves, most of the time it's because you haven't had parents around so you try to build characters to protect yourself.