Today is Indepdendence Day in the United States of America. It’s a perfect example of a holiday that means different things to different people. To some, it means fireworks and BBQ and a fabulous party. To others, it can mean something less positive.
As an exercise:
For 15 minutes, write as your main character and describe what the holiday on July 4th means. What will your character do? Go to a party? Attend a sporting event? March in a protest? Or something different?