To dream that you are in a cult, suggests that you are in a destructive and/or manipulative relationship where you are being exploited. On a more positive note, it also suggests that you have the desire to break free and strive for a better self.
To see a cult in your dream, indicates that you are lacking spiritual freedom.
To dream that you are a leader of a cult, signifies your authoritarian attitude. You don’t like others to question your motives or choices.