The ghost in your dream represents a part of yourself that is unclear to you, and that you do not understand. At times, ghosts represent those things that we can no longer obtain and that are fleeting. Traditionally, dreaming of friendly ghosts is a lucky omen, and that you should be receiving unexpected good luck. On the other hand if you were very frightened by the ghost in your dream, then others will try to impose their will on you and you must be vigilant in order to stand up to it.