Architectural Feng Shui What is the ugly direction and what is the A direction?

After opening it, hold it with your left hand, and you will see a cross red line on the inner disk. First, face the door three steps (7 footprints) away from the door, and turn the circular inner disk so that the pointer points due south. Then the horizontal red line in your hand is parallel to the door in your eyes. At this time, the vertical red line is the direction of your property. The vertical red line will press the upper and lower words of Tianchi (the circle of the pointer). The one close to the door is sitting, and the one close to you is Xiang.

I think it should be explained more clearly, I hope it will be helpful to you