Introduction to Lingxing Gate: Lingxing is what is known as the "Wenqu Star" in ancient astronomy. In ancient times, the emperor set up an altar to worship heaven in the suburbs, and he first offered sacrifices to the Ling star. Later, the Lingxing Gate was built in front of the Confucius Temple to compare Confucius to the Wenqu Star in the sky, and also to compare offering sacrifices to Confucius to heaven.