中秋节 (Zhōngqiū Jié), or the Mid-Autumn Festival, is a traditional Chinese holiday celebrated on the 15th day of the 8th month of the lunar calendar. It marks the harvest season and is a time for families to gather and appreciate the full moon, which symbolizes unity and harmony. During this festival, people often enjoy eating 月饼 (yuèbǐng), or mooncakes, which are round pastries filled with various ingredients. The festival also includes activities like lantern displays and moon gazing, reflecting the cultural significance of family reunion and gratitude for the harvest.