Most of what we would like to believe is spirit captured on film can be scientifically explained. Always look for a scientific explanation first especially with orbs in photos which are often dust on the lens. Some people believe these projections come from the photographer's consciousness, but then again all of reality is projected illusion. Personal interpretation is a form of Divination called Scrying or Pareidolia.
Nature Scenes With Obscene Themes
Oldest Recorded Video 1888 and Oldest Photos
Twin Towers - Ghostly Projection 2005