Every fifteen days, on Kajeng Kliwon, the dark forces of Bali gather to frolic and inflict illness on unsuspecting souls. These witches or leyak are humans who, through the study of black magic, are able to transform themselves into grotesque animals, demons, even flying cars. They haunt crossroads, graveyards or bridges, and this particular day, due to its inauspiciousness for dharma, or the correct path, is auspicious for Rangda, queen of the leyaks. A performance of the Calonarang dance is then often held.
As with many Balinese dance dramas, the story is based on historical sources. In the early 11th century, a powerful Balinese king, Udayana, married an east Javanese princess, Mahendratta. When he found out she had been practicing black magic, he banished her to the forest. No one dared to marry her daughter, even though she was stunningly beautiful so afraid were they of her mother’s magic. To this day the queen, her teeth grown into fangs, her tongue a long flame and her hair full of fire, takes revenge by spreading pestilence throughout the land.
There are many variations on the Calonarang dance, but all involve the Barong — a mythological beast with an immense coat of fur and gilded leather vestments. The most common and sacred is the Barong Ket, a cross between a lion and a bear, although the Barong Macan (tiger), Barong Bangkal (wild boar), Barong Celeng (pig) and Barong Gajah (elephant) also exist.