I have actually seen my grandfather once. my friend and I were in my room and she looked at the window and said " whats the white ball of light coming in the room" I look over and watching this white ball of like form into a white light figure of a man and it walked towards me!!! First thought was my grandfather. We screamed as loud as we could and nobody could hear us until he vanished! At the time I had a puppy named Zoe who was deaf and she was grunting and crying in her sleep because I think she knew he was there. I went ot a medium and asked him about it and sure enough he said it was my granfather checking in on me. Also 3 months after my grandfather died my grandmother died, at her memorial at the graveyard my 2 yr old cousin at the time screamed over to my uncle (her father) "theres pappy standing over there!" he was in a black suit with a tie. watching the memorial with the family and friends.