M
Encyclopedia of Dreams
If you are wearing a costume this could indicate that you are trying to hide your true self, or you inner feelings behind a facade of duplicity; you may not be wholly honest with a loved one and have a fear of being found out.
If you are wearing a ridiculous costume, such as a chicken suit, this could indicate that you are being foolish about certain matters in your life and must look to the other symbols to find out just what it is.
