Rice is the main food in southern China. Of course, in the unique season of winter solstice, glutinous rice balls have become the main food for most relatives and friends in the south. Besides giving gifts to relatives and friends, eating glutinous rice balls also means that all relatives will be reunited forever.
It seems that celebrating the winter solstice is not as ceremonial as other festivals, but in ancient times, homeless people had to go home for the winter season on this day. They might not even go back for the New Year, but they had to go back on this day. The ancients believed that from the winter solstice, the yang between heaven and earth began to flourish, that is to say, this day is a good day, and the family should get together for entertainment.