What does it mean that the yang on the compass turns from the left and the yin meets from the right?

There is a famous saying that Yang turns left and Yin turns right to welcome. If you can recognize the yin and yang, you won't meet the earth. Yang turns left, which means the longevity of water. Yang turns clockwise from the outer disk and Yin turns right, indicating that the dragon is in the head. For example, if the nozzle is in the water, you should know that the dragon is the second dragon. From the third noon, you are the dragon. According to the intersection of B and C, you are the dragon. From noon, the dragon is the other way around. This is the meaning of a brief encounter. Yang Gong is still alive, and the direction of his house is inevitable.