A Ba Gua is similar in all respects to the Pa Kua mirror, the only difference being that in the center there is no mirror but the mirror is replaced with a YIN-YANG symbol above which there are nine pyramids. The Ba kua is to be hung on the door frame of the master bedroom. If you are using it in an office then it should be hung on the door frame of your office cabin. A Pa Kua / Ba Gua is believed to prevent wrong vibrations entering the room and also prevents the good vibrations leaving the room.
