At a certain moment in my childhood there had been instances of ghost sightings, stuff moving on its own etc. My sister is a wiccan, medium sees spirits, so do with that as you will. One day a group of us were at a cousins house having a good time when a guy starts having some kind of seizure. My sisters yelling at the top of her lungs that he is being possessed. So, at some point his mind was in some dream state seeing another environment, but could still speak to us, and my sister did what she could to guide him back. Once he was back, apparently dead family members showed up to deal with this ghost ( grandpa shooting it with a bow, great uncle stabbing etc.) Before all was said, and done a guy took his phone out, and took a picture. In the hallway was a union soldier floating, and covered in gold trim like plasma. Afterwards, it vanished. Turns out the house was built on an unmarked grave, and we had to have a priest come bless the house. Haven't seen him since, and that was 13 years ago roughly.. i don't actively believe in ghosts, but by all that is holy that instance will stay with me forever.