1. East, West, South, and North can be aligned: front, back, left, right, up, down, left, spring, summer, autumn, and winter.
2. The couplets come from the Spring Festival couplets, and the Spring Festival couplets come from the "peach charms". Also called couplets, they are an art form with national characteristics that the Chinese people love to hear and see. They are a perfect combination of language art, calligraphy art and decorative art. It is a Chinese custom to post couplets during the Spring Festival, also called couplets.