What does it mean when you dream about a dead girl?

The dream's interpretation depends on the identity of the dead girl. She represents some part of yourself, but what that part of yourself is may be very different depending on whether the dead girl is someone you knew in the past, a deceased celebrity, or someone from the pages of history. On the other hand, if you have no idea of the identity of the dead girl, that means that you have no knowledge of an important part of yourself.