1, delivering positive energy: public welfare films focus on positive themes and deliver positive energy through storylines and role-shaping. The same is true of Yue Guang's Box, which encourages the audience to face the challenges in life bravely and actively by showing the stories of the protagonists facing difficulties, struggling hard and helping each other.

2. Promote social values: Public welfare films are often committed to promoting positive social values, such as friendship, mutual assistance, fairness and justice. Yue Guang's Box also shows the hero's friendship, affection and care for the disadvantaged groups, conveys positive social values and guides the audience to think and pay attention to social problems.

3. Pay attention to social issues: Public welfare films pay attention to some important social issues, such as poverty, education and environmental protection. "Yue Guang Box" also tells the story of children in poor areas, showing their efforts to pursue their dreams in a difficult environment, and arousing the audience's concern and thinking about poverty.