For modern Witches, Yule (from the Anglo-Saxon 'Yula', meaning 'wheel' of the year) is usually celebrated on the actual Winter Solstice, which may vary by a few days, though it usually occurs on or around December 21st. It is a Lesser Sabbat or Lower Holiday in the modern Pagan calendar, one of the four quarter-days of the year, but a very important one. This year (1988) it occurs on December 21st at 9:28 am CST. Pagan customs are still enthusiastically followed. Once, the Yule log had been the center of the celebration. It was lighted on the eve of the solstice (it should light on the first try) and must be kept burning for twelve hours, for good luck. It should be made of ash. Later, the Yule log was replaced by the Yule tree but, instead of burning it, burning candles were placed on it. In Christianity, Protestants might claim that Martin Luther invented the custom, and Catholics might grant St. Boniface the honor, but the custom can demonstrably be traced back through the Roman Saturnalia all the way to ancient Egypt. Needless to say, such a tree should be cut down rather than purchased, and should be disposed of by burning, the proper way to dispatch any sacred object.

Along with the evergreen, the holly and the ivy and the mistletoe were important plants of the season, all symbolizing fertility and everlasting life. Mistletoe was especially venerated by the Celtic Druids, who cut it with a golden sickle on the sixth night of the moon, and believed it to be an aphrodisiac. (Magically -- not medicinally! It's highly toxic!) But aphrodisiacs must have been the smallest part of the Yuletide menu in ancient times, as contemporary reports indicate that the tables fairly creaked under the strain of every type of good food. And drink! The most popular of which was the 'wassail cup' deriving its name from the Anglo-Saxon term 'waes hael' (be whole or hale).

Medieval Christmas folklore seems endless: that animals will all kneel down as the Holy Night arrives, that bees hum the '100th psalm' on Christmas Eve, that a windy Christmas will bring good luck, that a person born on Christmas Day can see the Little People, that a cricket on the hearth brings good luck, that if one opens all the doors of the house at midnight all the evil spirits will depart, that you will have one lucky month for each Christmas pudding you sample, that the tree must be taken down by Twelfth Night or bad luck is sure to follow, that 'if Christmas on a Sunday be, a windy winter we shall see', that 'hours of sun on Christmas Day, so many frosts in the month of May', that one can use the Twelve Days of Christmas to predict the weather for each of the twelve months of the coming year, and so on.

Remembering that most Christmas customs are ultimately based upon older Pagan customs, it only remains for modern Pagans to reclaim their lost traditions. In doing so, we can share many common customs with our Christian friends, albeit with a slightly different interpretation. And thus we all share in the beauty of this most magical of seasons, when the Mother Goddess once again gives birth to the baby Sun-God and sets the wheel in motion again. To conclude with a long-overdue paraphrase, 'Goddess bless us, every one!'
http://www.ecauldron.com/sabbats2.php