To be impaled in a dream may be more about an emotional wound you are suffering from. The part of the body that is impaled also has a meaning. The heart or chest area would point to heartache. The legs would indicate a need ti stand up for yourself or a need to move on from an emotionally painful issue. The head would mean you are feeling that someone wounded or criticized your intellect. The hand would mean you are not feeling strong enough to handle a particular situation, etc.