Shab-e Yalda, also known as Shab-e Chelleh, is an Iranian festival celebrated worldwide on December 21, marking the winter solstice and the longest night of the year. Originating as a Zoroastrian custom, it was traditionally observed to protect against evil forces on this inauspicious night. Families gather to stay awake, sharing the last fruits of the harvest, including significant symbols like pomegranates and watermelons, which represent new life and the dawn following the darkest night. The night is filled with activities such as eating, drinking, reading poetry—especially works by Hafez—and engaging in storytelling and conversation. While the religious significance has diminished since the advent of Islam, the cultural practices remain vibrant, with many also serving homemade alcoholic beverages despite the prohibition in Islam. Shab-e Yalda is also celebrated by Iranian communities in countries such as Azerbaijan, Afghanistan, Iraqi Kurdistan, Tajikistan, and Turkey.