Yes, eating tangyuan (glutinous rice balls) is a traditional custom during the Lantern Festival (also known as the Yuanxiao Festival or the Lantern Festival), which falls on the 15th day of the first lunar month in China．Tangyuan symbolizes family reunion and harmony, and it is believed that eating tangyuan can bring good luck and fortune．Tangyuan can be filled with sweet or savory ingredients, such as sesame paste, red bean paste, peanuts, meat, and vegetables．In addition to tangyuan, people also celebrate the Lantern Festival by lighting and admiring lanterns, guessing lantern riddles, performing dragon and lion dances, and watching fireworks.