Why did ancient Chinese make loud noises at festivals and during holiday celebrations?

Ancient Chinese made loud noises during festivals and holiday celebrations primarily to ward off evil spirits and attract good luck. The sounds, often created by firecrackers, drums, and gongs, were believed to scare away malevolent forces and ensure a prosperous year ahead. Additionally, the loud festivities fostered a sense of community and joy, bringing people together in celebration. These traditions continue to be an integral part of Chinese culture today.