I dreamt that I was praying for a friend. What does it mean?

In that dream, I was praying for my work mate who complained of evil attach. I was acting like a pastor and then I began praying and casting the spirits that were around him and I could see the power shake everybody in the dream. I also noticed the leader varnish into thin air and we all sang praises and worship. Now I won't say that I a strong religious person but I do pray most night in few words when in bed and also ask him to reveal things in the dream to me since I dream a lot. I had this dream after I asked him for guidance but I do not know what it means.