Yalda Night (Shab-e Yalda) is an ancient Persian celebration marking the longest night of the year (winter solstice) on December 20 or 21. Families and friends gather to welcome the triumph of light over darkness, symbolizing the renewal of the sun and the coming of longer days. Traditions include reading poetry (often Hafez), sharing stories, and enjoying seasonal fruits like pomegranates and watermelons, which symbolize life and prosperity. Yalda Night represents warmth, togetherness, and hope for the coming year.