If you dream that you were adopted, it means you are confused about your identity. Why are you confused? Do you feel you have difficulty belonging in your family? Do you feel isolated and alienated by your family? If you feel you lack support in your immediate family, you might think that they don’t care about you. You might suspect that they don’t accept you as one of them. When you face mental stress and emotional turmoil, these may trigger dreams with themes related to your problem.