Research shows that the content of most dreams is more frequently unpleasant than pleasant. Most people have experienced violent dreams or dreams in which they are being attacked.
To understand your dream consider all of its details and think about whether you are the attacker or the attackee.
If you are being attacked, then maybe you are feeling somewhat vulnerable in some area of your daily life.
If you are doing the attacking, it may be that you are releasing some of your frustrations and anger while expressing negative feelings in such ways that you are unable to do in daily life. ... The Bedside Dream Dictionary