1. Seeing red when you open the door means that you can see red screens, totems or walls as soon as you open the door. Because in China, red represents happiness, so it gives people a feeling of jubilation and warmth like spring.

2. When you open the door, you can see the red flowers and green leaves as soon as you enter the gate. Science has proved that green has the largest vision and can make the whole space full of vitality at once, so it can give people a feeling of full business and vitality, instantly relieve emotions and relieve stress;

3. Opening the door to see "Fu" means that you can see the elegant word "Fu" as soon as you enter the house. Opening the door to see Fu does not mean a specific word, but a pleasing picture or handicraft of white clouds, blue sky, streams and flowing water can also be used, because it mainly plays a role in reflecting the cultural taste of the owner of the house and regulating the nervous and tired mood.