What is the use of firecrackers in geomantic omen?

First of all, firecrackers are widely used in China, which can be used for weddings and funerals. From the perspective of geomantic omen, firecrackers should be loud, so they are used instead of thunder. Thor is the great god of China. Because he is here, he can destroy all monsters. According to legend, after the demon spirit is cultivated to a certain level, ordinary immortals or high-tech Taoist priests can't subdue it and can only be destroyed by lightning. Therefore, Taoism has a very powerful spell called the fire and thunder curse. Firecrackers are generally used to drive away evil spirits, and besides, they are only used to increase the atmosphere.