. Epa Oya oo. Oya’s day is Wednesday. Oya is the most powerful Orisa of the winds and tempests. Oya is known as a fierce warrior and strong protectress of women, people call on Her to settle disputes in their favor. As the Orisa of change, She brings down the dead and stagnant to make room for the new. She uses Her machete or sword and gifts of hurricanes, thunderstorms, winds to clear a path for new growth and transformation. She is known to be the Orisa to watch over the newly dead and assist