Scary parts of youthwork

I have a youthwork friend who had a dream about a session he was leading. The dream was remarkably close to the session he was likely to lead. the room was the same, the poeple were there, but there were a number of comments already up on the board, and they weren't possitive. He woke up at this point. Have you ever had one of those moments, and how do you treat it when it arrives. do you treat it as a dream, or as something prophetic, and allo it to bother you. Personally, for me, it would be a dream, bt it might awaken me to somethings that I might need to change before the activity started.