Fierce men in geomantic omen, such as rushing to the road in front of the house and killing with an anti-bow, pose a threat to the house and need shelter. The wall can be used as a shelter, but while blocking the road rush and suffocation, it also blocks the good luck in the prosperous times, making the house closed and boring, which is not conducive to development. So what can be used to block evil spirits and let good spirits float into the house? It is certainly good to choose green plants. Plants can adjust the climate and really improve the living environment. Now we advocate ecological environment and green buildings, which is consistent with the goal of Feng Shui.