The higher the fire, the louder the sound, the better. It requires three shots to ring, and the sound is loud and clear, which is the most auspicious. It means that the plague can be lifted for one year. You can't break the sound when you play, otherwise it's unlucky. When you encounter a squib, you should immediately say "get rich silently" and then add another one immediately.
Three shots should be fired when opening the door, which means good luck in the new year. Therefore, on New Year's Eve, every family fired again and again, for fear that there would be no noise.