冬至节, or the Winter Solstice Festival, is a traditional Chinese holiday that marks the shortest day and longest night of the year. It usually falls between December 21 and 23. This festival is significant in Chinese culture, symbolizing the return of longer days and the arrival of spring. Families often gather to celebrate and enjoy special foods. During 冬至节, it is customary to eat 汤圆 (sweet glutinous rice balls) in southern China and 饺子 (dumplings) in the north. These foods represent reunion and warmth, emphasizing the importance of family togetherness during this time. The festival also has roots in ancient customs related to the balance of yin and yang.