Dreaming of hacking that person to death shows that the landlord subconsciously has the idea of resisting this fear, but this idea has been suppressed for some reason.
The dream behind illustrates this reason: the landlord chose to escape because he was afraid of others gossiping.
As for the feeling of dreaming about something, I often have this feeling. I once said on TV that it was an illusion, but I always felt that I really dreamed it. ...
I don't know if I'm right, but I hope the landlord won't take it amiss if I'm wrong.
There have been different explanations about the causes of dreams, but none of them are accepted by everyone. Generally speaking, dreams are an extension of people's activities during the day. In other words, what you have recently will generally be reflected in your dreams. You dream of being chased, probably because what you have done recently is heavier.