|The Wendigo (also Windigo, Windago, Windiga, Witiko, and numerous other variants) is a figure appearing in Algonquian mythology. In these legends, it is a malevolent cannibalistic spirit into which humans could transform, or which could possess humans. Humans who indulged in cannibalism were at particular risk, and the legend appears to reinforce this practice as taboo.
The Wendigo is part of the traditional belief systems of various Algonquian-speaking tribes in the northern United States and Canada, most notably the Ojibwa/Saulteaux, the Cree, and the Innu/Naskapi/Montagnais. Though descriptions varied somewhat, common to all these cultures was the conception of Wendigos as malevolent, cannibalistic supernatural beings (manitous) of great spiritual power. They were strongly associated with the Winter, the North, and coldness, as well as with famine and starvation. Basil Johnston, an Ojibwa teacher and scholar from Ontario, gives one description of how Wendigos were viewed.
The Weendigo was gaunt to the point of emaciation, its desiccated skin pulled tautly over its bones. With its bones pushing out against its skin, its complexion the ash gray of death, and its eyes pushed back deep into their sockets, the Weendigo looked like a gaunt skeleton recently disinterred from the grave. What lips it had were tattered and bloody. Unclean and suffering from suppurations of the flesh, the Weendigo gave off a strange and eerie odor of decay and decomposition, of death and corruption.
At the same time, Wendigos were embodiments of gluttony, greed, and excess; never satisfied after killing and consuming one person, they were constantly searching for new victims. In some traditions, humans who became overpowered by greed could turn into Wendigos; the Wendigo myth thus served as a method of encouraging cooperation and moderation.
Among the Ojibwa, Eastern Cree, Westmain Swampy Cree, and Innu/Naskapi/Montagnais, Wendigos were said to be giants, many times larger than human beings (a characteristic absent from the Wendigo myth in the other Algonquian cultures). Whenever a Wendigo ate another person, they would grow larger, in proportion to the meal they had just eaten, so that they could never be full. Wendigos were thus simultaneously constantly gorging themselves and emaciated from starvation.
All cultures in which the Wendigo myth appeared shared the belief that human beings could turn into Wendigos if they ever resorted to cannibalism or, alternately, become possessed by the spirit of a Wendigo, often in a dream. Once transformed, a person would become violent and obsessed with eating human flesh. The most frequent cause of transformation into a Wendigo was if a person had resorted to cannibalism, consuming the body of another human in order to keep from starving to death during a time of extreme hardship or famine.
Among northern Algonquian cultures, cannibalism, even to save one's own life, was viewed as a serious taboo; the proper response to famine was suicide or resignation to death. On one level, the Wendigo myth thus worked as a deterrent and a warning against resorting to cannibalism; those who did would become Wendigo monsters themselves.
In Supernatural, the boys come upon a wendigo that snatched three young men who were camping. They managed to find one of the boys still alive, since the wendigo kept them alive to slowly feed on them. The wendigo was super strong and super fast, but could be killed by fire.