Ghost dream

In this dream, I was taking a college course in psychology or something. The class either met up at my parents' house or the college that held the class looked exactly like part of my parents' house, as a long hallway leads to their master bedroom. The professor was conducting a class with the lights off in order to explain for that lesson how atmosphere can affect the human brain, as that hallway is usually dark.

Then, lo and behold, the door to the closet in the room opened and a ghost came out. He seemed friendly and responded to our questions and all.

This immediately changed the content of the course, as when we started meeting up after that first encounter we studied the ghost, rather than psychology.

However, after several classes, we were walking down the hall one day to the bedroom when I got a very, very bad feeling that we should, under no circumstances whatsoever, interact with this ghost. I didn’t know if it would suddenly morph into a terrifying image and/or start attacking us or what, but I very strongly felt that we should stay away from him this one time.

This caused me to wake up then.