An osainista, in love with a woman Osain had refused, taught her his secret in exchange for her love. Osain changed her from woman to man, and punished his own son by leaving him impotent, deaf and blind.
A great osainista, to whose house many came to have their troubles solved, fell in love with a beautiful woman from another tribe and presented her to his Osain, but Osain refused her because she was no good for his son. Even so, the osainista courted her, and she would not have him. So he promised to teach her how his Osain worked in exchange for her love, and the woman, stung by curiosity, agreed; the osainista took her home and showed her how he worked with the pot.
From that moment the woman felt very ill in the belly, and although the osainista was desperate to be with her, she felt no interest at all: Osain had changed her from woman to man, taking her monthly cycle away, and she began to take an interest in other women. Osain punished his son by leaving him impotent and, later, deaf and blind, and the woman took charge of the house. That is why the secrets of Osain are not taught to women, and a woman who no longer has her cycle may have a guide of Osain.