I believe in them. why? a few years ago me and my cousin Robby were in a car crash, I was lying on the ground had just opened my eyes, I saw my cousin layin on the ground beside the vehicle, then after a minute something was standing beside him.
I blinked, and still it stood there, it looked exactly like him, it was him. Just so was the person on the ground. Then the one stnading up disapeared.
so yeah I believe. no I was not dreaming and I was not seeing things, how do I know that? because i also saw him in my hospital room, When I was being pushed out of my wheelchair to the car, and the last time was last year I was sitting in my room, He just appeared there and waved, like he was saying good bye. The vanished again but it looked diferent then the last two times. i think he finally moved on.