Shab-e Yalda(Yalda night) the longest night of the year is the celebration of Winter Solstice on December 21st.
On this night, members of the family stay together, narrate old stories told by ancestors, play traditional games, eat dried and fresh fruits and light canles symbolizing various things.
Reading poems of the Iranian poet, Hafez, is one of the most familiar activities on Yalda night.