If you see a preacher giving sermons in your dream, it signifies holiness, surrender, and repentance in your life. This dream indicates your social relationships and interactions with fellow believers. It may also be a sign to engage in good deeds and refrain from wrongdoing. Through this dream, you are becoming aware of your life's purpose and responsibilities, which can lead you toward a path of longevity and improvement.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Preach" (page 339) â resolved via the equivalent "Preacher" entry.
A preacher delivering his sermon in a dream represents purity, submission, repentance, crying, rising in station, longevity, mixing with a fellowship of believers, commanding what is good and forbidding what is evil, celebrations, weddings, or anniversary meetings. If an unwed woman sees him in her dream, it means that she will get married through a third party involvement. The same goes for an unwed man, or it could indicate his search for a wife. Ifa suitable person sees himself being a preacher in a dream, it means that he will be appointed to manage a sensitive position of authority. Ifone sees himself delivering a sermon CKllutba)in accordance with the prescribed method and prophetic traditions in a dream, it means that he will be helped at doing his work. If he wears a white garment instead of a black one when delivering his sermon in the dream, it means that he will rise in station and that his earnings will increase. If one sees himself sitting down rather than standing up when delivering his sermon in a dream, it means that he will preside over his companions. If one sees himself sitting on the pulpit rather than standing up and delivering his sermon in a dream, this maybe interpreted as afflictions and disgrace. If an unqualified person sees himself delivering a sermon during the pilgrimage season in a dream, in this case his dream may refer to someone in his company who will do so, or it may mean that he will suffer from an illness or a mishap. If he delivers a sermon and people hearken to his words in the dream, it means that he will become a respected and obeyed guardian or leader. If he does not finish his sermon in the dream, it means that his guardianship will not last, or that he will resign or be fired from hisjob. Ifa woman sees herself delivering a sermon and admonishing people in a dream, it means that she will gain power, or marry a strong and a righteous man. If she sees herself giving a sermon on Friday's congregational prayers in a dream, it means that she will be divorced, or conceive a child from adultery. (Also see Friday; Setting out)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.