To dream that you are stealing suggests that you are feeling deprived. The locale (at home, the office, at school, etc) of where the stealing takes place is indicative of your neediness. Alternatively, stealing signifies unrealized and unfulfilled goals. You may have set your goals too high.
To dream that someone is stealing something from you indicates that you are experiencing an identity crisis or are suffering from some sort of loss in your life. Alternatively, the dream means that someone has stolen your success or has taken credit for something you did. Perhaps you feel that you have been treated unfairly.