Yalda is a traditional Iranian festival celebrated on the longest night of the year, which is usually around December 21 or 2It marks the beginning of winter and is a time to gather with family and friends to eat, drink, and read poetry. Yalda has ancient roots in Persian mythology and Zoroastrianism, and is now celebrated by Iranians of all religions and backgrounds. The festival has various regional and local customs, but usually involves eating fruits and nuts, especially pomegranates and watermelon, and drinking tea or hot chocolate. It is also customary to stay up late into the night and read poetry, particularly the works of Hafez, a beloved Persian poet.