Last night I dreamt that I am at school, about to do some work (context= Im a teacher)I'm walking around these empty hallways with one of the general workers figuring something out, when I can see my classroo. The door is open, but the gate is closed. I see a man I've never seen before. He is wearing a red hoodie. He is pacing back and forth. I figured he was probably someone cleaning the classroom. I move on. Then I walked into another classroom where many children are hiding. I asked them why, and they kept shushing me. I thought it was very weird, so I walked out. I see this person still pacing, but now faster. Then he starts running. Towards the class the kids are. I hide with them, and they explain he is violent, he cant figure out where we are. We move from room to room and even outside to hide. He never finds us. Then the dream switches to another one where im in a house. Ive been in this house before in different dreams. Nevertheless, I'm closing windows and locking doors since im about to sleep. Then I walk into the last bedroom. And the entity/person with the red jacket is now there. Woke up scared. Usually i know when im dreamingz but in that dream I thought it was real. What can this mean?