Screen wall is also called screen wall. The screen wall is set for blowing air outside the house, and its function is to prevent the strong air outside the house from impacting the house and to preserve the vitality inside.
From the perspective of geomantic omen, whether it is the river outside the house or the airflow inside the house, it is taboo to go straight. This is the reason why it is said in Shui Long Jing that "going straight to harm people". In ancient residential buildings, especially quadrangles, shadow walls will be set up inside and outside the gate to block the airflow whistling outside the house and make its velocity coordinate with that of the air inside the house.
Different energy fields in different living environments have different effects on people. A living environment with a good pulse and vitality can improve the comprehensive fortune of homeowners and make their careers smooth, healthy and harmonious; If the atmosphere is evil and there is no living environment, it will bring a series of troubles and troubles to the host.