the Japanese had done an experiment years back on an old haunted
house i ever watched in a documentary...where many claimed to have
seen images of ghosts in that house....
they then built a small room with windows and got a person
seated in front of the window....and simulate lighting flashes
.....the person's face was imprinted with a blurred image on the
window pane....
some myths could be due to some physical effects and
laws.....