1. Create a festive atmosphere: on important festivals, such as Spring Festival, Lantern Festival, wedding, housewarming, etc. People will set off firecrackers to create a festive atmosphere which will bring happiness and good luck to people.
2. To ward off evil spirits and avoid special features: In the traditional culture of China, firecrackers are considered to have the function of ward off evil spirits and avoid special features, and people believe that firecrackers can drive away bad luck and bring good luck.
3. Welcome the New Year: In China, when the New Year comes, people will set off firecrackers to welcome the New Year and express their good expectations for the new year.
4. Celebration: Sometimes, people will celebrate some special activities, such as company opening and large-scale celebrations, and set off firecrackers to express their feelings of celebration and joy.
It should be noted that for the sake of safety and environmental protection, it is forbidden or restricted to light and set off firecrackers at a specific time and place in many places, and it is necessary to abide by relevant regulations.