Our brain communicate through dreams. The left side and the right side synchonize through dreams. You don't have to worry about the meaning of it, our occipital lobe is designed to interpret these meaning. Just don't interrupt your occipital lobe by thinking outside. These dreams occur through prefrontal lobe, the right side and the left side. Sometimes you wanna know the meaning of your dream, just let it know, but don't overthink. If you remember your dream, its because you're deeply connected to it. Good luck dreaming and have a good sleep