Vila, the Blood Sister of Serbian Epic Poetry

South Slavic oral epic gives the vila a role unlike almost any other nature spirit recorded across the wider Slavic world: not merely a hazard to be avoided but a genuine companion and ally to the tradition's greatest heroes. Marko Kraljevic, the semi-historical hero at the center of an enormous cycle of Serbian and South Slavic epic songs, has a vila as his sworn blood sister, a bond formed through ritual exchange, and she appears at key moments across the cycle offering counsel, healing his wounds and warning him of danger he could not otherwise have known. This close, protective relationship sits alongside darker stories about vile in general, in which the same beings punish trespass or disrespect with sudden illness, crippling or death; the two sides were never felt to be in tension, a vila's power to heal and to harm understood as the same power, applied differently depending on how she was treated. Folk explanation for unusual circular patterns of flattened or unusually green grass in meadows and clearings, a phenomenon recorded across much of Europe under various names, took a specifically vila flavored form across the Balkans, where such rings were called vila's rings or vila's dancing grounds, marking the spot where a group of vile had danced through the night, the same natural phenomenon given a supernatural cause fairy rings received elsewhere in Europe. Nineteenth century folklorists recording South Slavic oral tradition before it was lost to modernization, Vuk Stefanovic Karadzic foremost among them, preserved many vila narratives exactly as sung by rural informants, which is why so much of what is known about the vila today comes filtered through the literary form of epic song rather than through any single systematic account of belief.