I believe in ghosts. Ghosts are some kind of apparitions visible through a light filter. It also depends on a persons light sensitivity. In a Czech university, they carried out an experiment with different light filters including infrared filter and ultraviolet filters. Some apparitions could be seen using filters towards the ultraviolet range. These apparitions were seen more at places of burials. You might think you're alone right now but if you get these ultraviolet light filters you can see these apparitions, these ghosts, RIGHT THERE SITTING BESIDES YOU. I just got a chill down my spine. Did you?