Hmmm... I'm not much good at interpretation, but believe that things we experience during the waking hours come out in our dreams. For instance: If you watch a film about animals in the wild killing their food and then a while later go to the zoo, that information is in your mind. You might then have a dream that one is trying to kill you. Or that one of your children is an animal or that you keep something as a pet that is found only in the wild. One thing sorta depends, on what came before it.
There are a lot of dream interpretation symbols out there, but I don't buy into that. Who can say that one thing means the same for all people.
Not much help, but that's my take on dreams and have had plenty of opportunity to check this out as I dream as soon as I shut my eyes and sleep,