To dream that you are a hostage represents feelings of being a hostage of circumstances. Feeling forced to go along with other people wishes. You might also feel trapped by your own beliefs. Feeling victimized, powerless, or limited in your choices. Physical immobilization.
To dream of other people as hostages may reflect a part of yourself that is unable to be fully expressed.
To dream of taken hostages may reflect your desperation to assert yourself or force compromise. Curtailing someone else's wishes or happiness until your own wants are addressed.