ییل (Yalda) is an ancient Persian festival celebrated on the longest night of the year, which usually falls on December 21st. This event marks the winter solstice and symbolizes the victory of light over darkness. Families gather to celebrate with traditional foods, stories, and poetry, particularly the works of Hafez, a famous Persian poet. During ییل, people often enjoy fruits like pomegranates and watermelons, which represent the cycle of life and the arrival of longer days. The night is filled with warmth, laughter, and the sharing of wisdom, making it a cherished occasion for family and friends in Iran and other regions influenced by Persian culture.