The inquiry into what you really are begins with the understanding that this body doesn’t exist for long, it dies. So, when I die, do I die with the body? Or am I still around? If I’m still around and if I have a personality and a subtle body, still it is mine and I’m still me. So if all these are mine, then I must be different than mine. One day, in the quietness of the inquiry, perhaps it will dawn on you what you actually are.