Being kissed under the mistletoe has been a Christmas tradition for more than a thousand years. But mistletoe is not only associated with a gentle kiss, it has a lore all its own. Mistletoe is a parasitic plant that lives off trees. It has attracted human attention for thousands of years because, in the depth of winter, it is green. That made it a natural for legend and ritual, especially fertility rituals. The actual kissing under the plant may have begun with the Greeks in their agricultural festival, according to The Wall Street Journal, but its kissing properties continue to this day where, as the old song puts it, we can see mama kissing Santa Claus. To the ancient Scandinavians, mistletoe symbolized peace. Enemies meeting under the mistletoe declared a truce until the following day. On a more domestic note, disgruntled spouses kissed and made up under the greenery. The Druids believed mistletoe possessed magical powers. Their priests cut the plant with golden sickles and gathered the trimmings on white cloth so the plant would never touch the earth and lose its enchantment. The French didn't like it. They said mistletoe was cursed because it grew on the wood from which the cross of Christ was made and that it was doomed to be a rootless parasite forever. In the Middle Ages, mistletoe was hung from ceilings in Europe to ward off evil, or it was dangled over doors to prevent the entrance of witches. If mistletoe was suspended over a crib, the child was said to be safe from kidnapping. Viking lore describes the goddess of love, Frigga, who made each plant and animal promise not to kill her son Baldur. She forgot the mistletoe plant and Baldur was killed by a spear made from it. The white berries on the mistletoe are said to have been created from her tears. When her son returned to life, Frigga proclaimed the mistletoe to be sacred. She kissed everyone who passed under it and decreed the plant should henceforth bring love. This is said to be the origin of kissing under the mistletoe. So go ahead. Kiss under the mistletoe, have fun doing it, and give a nod to Frigga for starting a very enjoyable custom.