I don't think that is exactly what was meant. I believe that the original post was just separating the spirit world from our world. Christians can be cursed, and have curses placed upon them. Don't you think it was a bit of a curse from God when King Nebuchadnezzar became as a mad man? It was a curse placed upon him from God to bring him to repentance. Christians, like any one, can also have curses placed upon them by witches in this world.