If someone has kidnapped you in a dream, then such dream indicates the stagnation of your feelings. Perhaps there is something in your life that doesnt let you to perform fully. The limitations and restrictions that are given to you dont let to be who you wish to be. If you see someone else being kidnapped, then it means you are finding difficult to accept the characteristics of that certain person. If you were the one who was a kidnapper in a dream, then it means you are struggling to leaving your past behind. Perhaps there are some sentiments which you are unable to let go.
Read more about dreaming of Kidnapper in other dream meanings interpretations.