Sir James George Frazer (18541941). The Golden Bough. 1922.
When symptoms of puberty appeared on a girl for the first time, the Guaranis of Southern Brazil, on the borders of Paraguay, used to sew her up in her hammock, leaving only a small opening in it to allow her to breathe. In this condition, wrapt up and shrouded like a corpse, she was kept for two or three days or so long as the symptoms lasted, and during this time she had to observe a most rigorous fast. After that she was entrusted to a matron, who cut the girls hair and enjoined her to abstain most strictly from eating flesh of any kind until her hair should be grown long enough to hide her ears. In similar circumstances the Chiriguanos of South-eastern Bolivia hoisted the girl in her hammock to the roof, where she stayed for a month: the second month the hammock was let half-way down from the roof; and in the third month old women, armed with sticks, entered the hut and ran about striking everything they met, saying they were hunting the snake that had wounded the girl.
Among the Matacos or Mataguayos, an Indian tribe of the Gran Chaco, a girl at puberty has to remain in seclusion for some time. She lies covered up with branches or other things in a corner of the hut, seeing no one and speaking to no one, and during this time she may eat neither flesh nor fish. Meantime a man beats a drum in front of the house. Among the Yuracares, an Indian tribe of Eastern Bolivia, when a girl perceives the signs of puberty, her father constructs a little hut of palm leaves near the house. In this cabin he shuts up his daughter so that she cannot see the light, and there she remains fasting rigorously for four days.
Amongst the Macusis of British Guiana, when a girl shows the first signs of puberty, she is hung in a hammock at the highest point of the hut. For the first few days she may not leave the hammock by day, but at night she must come down, light a fire, and spend the night beside it, else she would break out in sores on her neck, throat, and other parts of her body. So long as the symptoms are at their height, she must fast rigorously. When they have abated, she may come down and take up her abode in a little compartment that is made for her in the darkest corner of the hut. In the morning she may cook her food, but it must be at a separate fire and in a vessel of her own. After about ten days the magician comes and undoes the spell by muttering charms and breathing on her and on the more valuable of the things with which she has come in contact. The pots and drinking-vessels which she used are broken and the fragments buried. After her first bath, the girl must submit to be beaten by her mother with thin rods without uttering a cry. At the end of the second period she is again beaten, but not afterwards. She is now clean, and can mix again with people. Other Indians of Guiana, after keeping the girl in her hammock at the top of the hut for a month, expose her to certain large ants, whose bite is very painful. Sometimes, in addition to being stung with ants, the sufferer has to fast day and night so long as she remains slung up on high in her hammock, so that when she comes down she is reduced to a skeleton.