According to legend, black cats were the companions of witches and in the Middle Ages were seen as the incarnation of Satan and the power of the devil. These creatures have never had an easy life and were often persecuted. To this day many superstitious people believe that a black cat brings bad luck and is a symbol of misfortune. When it comes to the dream with a black cat... they are right.
Seeing a black cat in a dream is in fact a harbinger of the upcoming trouble. They can appear in a different form: betrayal, false friend or financial losses. People, who are not superstitious, may explain themselves the dream as a symbol of the subconscious sexual fantasies. A person dreaming sometimes does not even know who is the object of the erotic fascination, or does not allow himself to think about the relationship with a particular person.
For more information about the dreams about a cat can be found under the entry "cat".