شب یلدا, also known as the Yalda Night, is an ancient Persian celebration that marks the longest night of the year, occurring on the winter solstice. Families gather together to celebrate the arrival of winter and the gradual return of longer days. Traditionally, people stay awake until dawn, sharing stories, poetry, and enjoying special foods. During شب یلدا, it is customary to serve pomegranates, watermelons, and various nuts. These foods symbolize the cycle of life and the hope for a fruitful year ahead. The celebration emphasizes family bonds and cultural heritage, making it a cherished occasion in Iranian culture.