What's so particular about door covers in geomantic omen? Was there an obvious oblique seam on the door cover opposite my house when I entered the door?

Regardless of feng shui for the time being, if you look at the oblique seam and feel bad or uncomfortable for a long time, you will subconsciously gradually strengthen this feeling, which will definitely have a bad influence on yourself. This is why beautiful things make people happy. On the other hand, in Feng Shui, everything that feels bad at first sight is classified as evil spirits. Of course, they also need to change. Don't consider the impact, but solve it immediately.