To dream of decapitation represents decision-making that has been cut off. The severing of control. An aspect of your personality or your projection of a situation that is being cut off from making choices. It may also reflect the severing of relationships. Cutting yourself off bad habits permanently. A dramatic positive change in your life.
To dream of being decapitated may represent feelings about a person or situation that is cutting off your ability to make choices. An embarrassment or punishment that leaves you impotent. Feeling powerless to control anything.
Example: A man dreamed of decapitating an evil person. In waking life he was recovering from wanting to commit suicide.
Example 2: A young man dreamed of decapitating his brother. In waking life he was considering cutting his brother out of his life for good.
Example 3: A young girl dreamed of herself being decapitated. In waking life she was experiencing herself being molested with no way to stop it.