When Robert Pattinson appears in a dream, does he appear as Cedric or does he appear as Edward Cullen? If he is Cedric, then you are not willing to let old memories go. If he is Edward, then you are ready to tackle new obstacles that can take you far.
You have to make the choice of staying in a comfort zone or accepting new challenges to advance your career or relationships.
Also, if Rob Pattinson appears as a vampire in your dream then you are seeking a dreamy guy to make your heart skip a beat, or give your neck a lovely kiss.