Hamlet Senior's Ghost

The ghost in Hamlet represents Hamlet Senior's distressed soul roaming 
the castle grounds. Unable to rest after his brutal murder, Hamlet senior 
seeks revenge by inspiring Hamlet to avenge his death. After reading the
 link I provided below, I found some interesting takes on the ghost's place 
in the play. The author or the article statesThat the ghost is actually an
 incarnation ( but not really) of Hamlet's inner most emotions. Also stated
 by the author, the ghost is Shakespeare's way of showing the audience 
what went on in Hamlet's conscious and that of his friends as well. After
 reading this I find it to be true and i continue to search for hints of it 
in scenes where the ghost enters.







http://www.shakespeare-online.com/plays/hamlet/hamletandghost.html