Because there’s no Tantra which controls a traditional head. Weak brains might be managed with the assistance of Vashikaran. This process is totally imaginary. It’s only a trick for making someone feel that a thing is remaining pushed on by another person. Some Vashikaran kriya like Kaam pishachi vashikaran, https://www.youtube.com/watch?v=z6gyv0dRdRg