"The Longest Night" refers to the winter solstice, which occurs around December 21st in the Northern Hemisphere. On this day, the North Pole is tilted farthest away from the Sun, resulting in the shortest period of daylight and the longest night of the year. This astronomical event has been celebrated in various cultures, often symbolizing the return of light as days gradually begin to lengthen. Many traditions and festivals are associated with the winter solstice, including Yule in Pagan cultures and Dongzhi in Chinese culture. These celebrations often involve feasting, lighting candles, and various rituals to honor the rebirth of the Sun and the promise of longer days ahead.