I've had a dream like that aswell. I remember feeling helpless, not being able to do anything about it. Instead of focusing on the details of the dream, try to focus on the feelings you felt. It could be linked to the feelings you feel when you're awake (dreaming is a way for the brain to process things it's seen or felt during the day.) I came to the conclusion from my dream that I sometimes feel I'm trapped, in different scenarios. I then tried to think of what made me feel that way and what to do about it :)