If you dreamed that you were fighting with your sister-in-law: You may be interested in new subjects, you are at a time when you need to take care of your health. To see that you are fighting with your sister-in-law in your dream indicates that your problems will be resolved, bad days will be left behind, your life will change and you will live a peaceful life. To see that you are fighting with your sister-in-law in your dream is sometimes interpreted as having problems because of your sister-in-law and increasing problems with your spouse.