Christmas traditions for many nations include the installing and lighting of Christmas trees, the hanging of Advent wreaths, Christmas stockings, candy canes, setting out cookies and milk, and the creation of Nativity scenes depicting the birth of Jesus Christ. Christmas carols may be sung and stories told about such figures as the Baby Jesus, St Nicholas, Santa Claus, Father Christmas, Christkind or Grandfather Frost. The sending and exchange of Christmas card greetings, observance of fasting and special religious observances such as a midnight Mass or Vespers on Christmas Eve, the burning of a Yule log, and the giving and receiving of presents are also common practice. Along with Easter, Christmas is one of the most important periods on the Christian calendar, and is often closely connected to other holidays at this time of year, such as Advent, the Feast of the Immaculate Conception, St Nicholas Day, St. Stephen's Day, New Year's, and the Feast of the Epiphany.