Islamic Interpretation of Dreams (Ibn-i Sirin):
(Clergyman; Conjecture; Monk; Prognosticator) A priest in a dream connotes faith, renouncing the world, staying away from suspicion, or he could represent an Imam, a guide, an example to be followed, or a wise man whose instructions people respect and obey.
A priest in a dream also could represent someone who follows conjecture, or someone who does not see his own faults.
If a regular person sees himself as a priest in a dream, it means benefits for others, rising in station and fame.
If a layman sees himself speaking like a preacher, a soothsayer, a fortuneteller, an astrologer or a priest in a dream, it means that he lies and engages in falsehood.