Insight 2: From a psychological point of view, there are thoughts and dreams every day. Maybe you miss someone, or worry about someone, and you are worried about what happened to him or her, so you see these horrible scenes in your dreams, while some people say that things about the dead may be because you have a sense of conformity to many people or your subconscious wants someone to point out things instead of finding them spontaneously. This may also be a sign of worrying about many people, and when you live in the dormitory.
The scene you told has a great psychological impact on you, so it is unforgettable. I suggest you relax and cheer up. Dreams are different from reality. I hope the landlord is healthy and happy ~