First of all, coconut milk dumplings are a very popular traditional dessert in Thailand, and eating them on the winter solstice is believed to bring good luck and wealth. Since the winter solstice is the coldest time of the year, eating the hot dessert also helps to keep the cold away and warm.
Thailanders eat coconut milk dumplings with eggs on the winter solstice as a reflection of traditional customs and as a symbol of people's prayers and pursuit of a better life. It symbolizes praying for peace, health and happiness.