No one knows anyway. A healthy, stable sense of self is a product of good quality parenting in childhood, but is still completely fictional. You're the same thing as when you were first born and had no idea about gender/politics/religion/meaning/identity. You could have just as easily been born into a completely different part of the world and led a totally different life. It is all superimposed.
Eastern philosophy approaches this question very differently, bypassing the conditioned mind altogether through deep introspection. With the right effort and guidance, some have achieved a genuine answer, though it cannot be verbalised and others have to go through the same process to find out for themselves.
