What does Duke Zhou mean by dreaming of cannons?

The voices you hear in your dreams reflect the lives of others around you, and there are some great changes. If you hear loud voices, it means that these problems have also affected you.

Dreaming of firecrackers is usually a good thing, and changes in other people's work or life have also brought you certain benefits or changes!

Dreams related to sound are generally what you hear in reality, giving you a psychological hint and emotional feeling.