Bulgarians as well as Albanians nod the head up and down to indicates no and shake to indicate yes. They may wear the martenitsa (мартеница)—an adornment made of white and red yarn and worn on the wrist or pinned on the clothes—from 1 March until the end of the month. Alternatively, one can take off the martenitsa earlier if one sees a stork (considered a harbinger of spring). One can then tie the martenitsa to the blossoming branch of a tree. Family-members and friends in Bulgaria customarily exchange martenitsas, which they regard as symbols of health and longevity. When a stork is seen, the martenitsa should be left on a tree. The white thread represents peace and tranquility, while the red one stands for the cycles of life. Bulgarians may also refer to the holiday of 1 March as Baba Marta (Баба Марта), meaning Grandmother March. It preserves an ancient pagan tradition, possibly celebrating the old Roman new Year, beginning on 1 March, identical with Romanian Mărțișor. Pagan customs found their way to the Christian holidays. The ancient ritual of kukeri (кукери), similar to Slovenian Kurentovanje, Busójárás and Halloween, is performed by costumed men in different times of the year and after Easter. This seeks to scare away evil spirits and bring good harvest and health to the community. Goat is symbolized, that was left from the Thracian cult of Dionysian Mysteries. The ritual consists of dancing, jumping, shouting and collect gifts from the houses in an attempt to banish all evil from the village. The adornments on the costumes vary from one region to another. The Thracian Heros remains in the image of Saint George, at whose feast the agriculture is celebrated, a lamb is traditionally eaten, accomplished with ritual bathing. Saint Tryphon's fertility and wine is attributed a Thracian origin, considered to preserve the cult to Sabazius as the Kukeri. This is followed in February by Pokladi, a tradition of setting massively large fire and jump over as at the Kupala Night and a competition between couples to eat an egg on a thread is held. Another characteristic custom called nestinarstvo (нестинарство), or firedancing, distinguishes the Strandzha region, as well as Dog spinning. The authentic nestinarstvo with states of trance is only preserved in the village Balgari. This ancient custom involves dancing into fire or over live embers. Women dance into the fire with their bare feet without suffering any injury or pain.