I have had dreams in the past that i killed people but this one is especially odd. To start i am a blonde female, but in this dream i was a tall man with black hair. In my dream i recall killing several people (none of which i knew) with my bare hands but i remember thinking it's okay they are horrible people anyway. Then i went in this room and there was a shelf with about a dozen or so heads in jars that where rotting. All of the heads were men, but the people i killed were mostly women. Throughout the dream i was relatively calm and my only concern was that someone might find my jars so i started nailing boards over the shelf. All i could think was that none of the people where i came from would believe that these people all had to be killed. Along with an interpretation I'd also like to know if it is odd to dream of being the opposite gender because i am a male in over half of my dreams.
First of all, you might find this interesting: Anima/Animus It explains what's going on as far as dreaming of being the opposite sex. You are dreaming of your inner animus. I"ve done it myself, but not that often. As far as killing others in your dream, it may be one of two things: you are killing those things within yourself you hate that are personified by the victims in the dream, or there are people you'd just like to kill, although figuratively speaking. The rotting heads could also be a symbol for those people that seem to you to be dead from the neck up. Are they mostly male? Do people in general bug you? Do you feel they meddle into your business when you'd just like to be left alone? Killing them in the dream could be a catharsis.
wait are you saying men are brain dead? any ways i have to agree with slumber. yet the fact that you kill females seems to have a problem with some of them. like so drama women get a lot.the fact that the heads in the jars are male tells me you have had guy trouble and you want to forget them. but can't help to remember. you then try to hide the heads. almost as if you are ashamed.
It could mean that you are having a problem with a part of yourself that you consider stereotypically feminine (soft, week, sensitive) and your strong, tough side (steretypically masculine) is trying to assert itself. Masculinity is associated with intelligence and femininity with emotion. The male heads could have something to do with that.