Astral Projection/ Doppelgangers

     This is an interesting topic for me.  I've never really understood 'Astral Projection,' or 'Doppelgangers,' and I can only assume that it's because we never hear much about them.  If you go to Wikipedia, it claims that Astral Projection is an interpretation of out-of-body experience that assumes the existence of an astral body that is seperate from the physical body and capable of traveling outside of it.  Now a Doppelganger, which, if you'll excuse me because I continually mispell it, in the Merriam Webster dictionary is a ghostly counterpart of a living person.  If you, my limited readers, have had any experience in this area, please feel free to comment.
     Now here is a story that actually chilled me upon reading it.  It involves astral projection, and if it is true, as the author stipulates, it is one of the most amazing stories I've ever heard. 
     This is a story I read from a book titled:  'Living With Ghosts,' by Prince Michael Of Greece.  So here goes.

     In the 1960's, a wealthy English woman dreamed every night of the same thing.  In it she saw a house, a large and distinctive country mansion.  She did not recognize it, and often wondered why she revisited this place in her dreams so frequently.
     One day, while traveling through Scotland on a second honeymoon with her husband, she drove around a corner and was shocked to see the very house she had dreamed of for so long.  Resolving to solve this mystery once and for all, she approached the house and rang the bell.  A surely looking man, whom she took to be a caretaker, answered the bell and stood there, staring at her with horror.
     She asked who lived in the house.  Visibly shaken, the caretaker replied that it had been empty for many years.  Then he said something that further disturbed her - "The owners did not care to share the house with the White Lady."
     "So the house is haunted?" she asked.
     "You should know," the caretaker replied, "you are the ghost."

     We've all had dreams of flying, feeling the wind caress your face, that feeling of freedom.  Sometimes you lose control of your flight and go so fast your stomach sinks like you're falling.  Could this dream of flight actually be an out of the body experience?  Astal Projection?  Many have said that at some point in time, everybody experiences astral projection, and that at least a fraction of these 'flight' dreams are induced by this very phenomenon.  What's your thoughts?