"Who are you really and what were you before?" is so much more than just a quote from the movie Casablanca. Could you be more than this body and its form? Are you a body or are you the energy that animates the body? And if energy can neither be created nor destroyed, as the first law of thermodynamics states, did you exist before you were born into this world? And will you continue to exist once your performance on your "stage" in this "theater" ends?
If you choose to identify, in this life you're living, as the energy that animates the body, was there a time and place where you animated a different body? Humphrey Bogart's character goes on to ask, "What did you do and what did you think?" Do you remember? Or did you agree to forget...