Have you ever been going along your day when you realize how small and insignificant to the world? And your hit with a wave of sadness and realization that when your gone sure a few will remember you and then they'll be gone too and that will be left is a lump of stone with your name on it, until of course it itself withers away. I'm not sure if this is a sign of depression but these feelings make me yearn a hug or a well intentioned "Its okay."