Need-fire

Need-fire, or Wild-fire (Ger. Notfeuer, O. Ger. nodfyr, Scottish Gaelic tein'-éigin), a term used in folklore to denote a superstition which survived in the Scottish Highlands until a recent date.
Like the fire-churning still customary in India for kindling the sacrificial fire, the need- or wild-fire is made by the friction of one piece of wood on another, or of a rope upon a stake. Need-fire is a practice of shepherd peoples to ward off disease from their herds and flocks. It is kindled on occasions of special distress, particularly at the outbreak of a murrain, and the cattle are driven through it. Its efficacy is believed to depend on all other fires being extinguished.