I dreamt that I discovered a dead twin sister which I had no idea about (she doesn't exist in real life). And somehow I knew that she was mute. And I was baffled and shocked and scared and disgusted. I was mad that she copied me and pretended to be me with my friends when I wasn't aware of it. Then i saw a huge crowd of plastic mannequins marching from my right in the fields. I knew I was hallucinating them
In your dream, the discovery of a dead twin sister symbolizes the unexplored or hidden aspects of yourself. This could represent traits, desires, or emotions that you have not yet acknowledged or accepted. The fact that she is mute suggests a lack of communication or expression of these hidden aspects.
Feeling baffled, shocked, scared, and disgusted signifies your emotional reaction to discovering these suppressed parts of yourself. It may imply a fear of being deceived or betrayed by someone close to you, as you mention being mad that she copied you and pretended to be you with your friends. This could indicate a fear of losing your individuality or being overshadowed by others.
The appearance of a huge crowd of plastic mannequins marching indicates artificiality and a sense of detachment. This could reflect your perception of the world around you, feeling like people are not genuine or are merely going through the motions without showing their true selves.
The realization that you are hallucinating these mannequins suggests a possible disconnect from reality or perhaps a questioning of what is real and what is not. This could mirror feelings of confusion or uncertainty in your waking life. Overall, your dream may be signaling a need to explore and integrate hidden aspects of yourself and to assess the authenticity of your relationships.