Simple, post a strange dream you or a friend have had. A few months ago, my father had a dream that he woke up in his bed, and found people staring at him, and they said something like "Sorry for disturbing you, would you like to revisit your life?" or something like that, that gave him the impression that he was dead, and his life is just him revisiting it. Scary. You've probably now started thinking about existence and the universe, and are now confused, sorry