In the world of dreams the rules of reality do not necessarily apply. Each dream is unique and it's a direct link to the soul and spirit. Psychology provides its own theories on what dreams mean, but so did tradition and the study of dreams for thousands of years before any relevant science had developed.
Dream Meanings - Net-nets
If you dream that you are casting nets into the sea and your net is filled with fish then you will profit greatly from your work. If you see that you are caught up in a net as you walk, then somebody you consider a ‘friend’ will hurt you. If you simply see a net then you will be disappointed in the coming days.