I am a medium. To me, the seemingly unreal concept of yin and yang, of humans and ghosts, is very real indeed. After experiencing many events connected to both worlds, the idea of “yin spirits” has long since ceased to be just a label for paranormal phenomena. In the public imagination, yin spirits are often associated with fear and ill omens. They are like shadows suddenly darting out of the dark, bringing endless terror. But after coming into close contact with them, I have seen the complicated and heartrending stories behind these spirits.