For those who have not completed games in the Xenoblade Chronicles series, this page contains spoilers regarding the plot. Discretion is advised.
The Sororal Statues are a landmark in Xenoblade Chronicles. They are located in Satorl Marsh, on the east side of the map. While on the map it appears that the Statue Summit is easy to get to from here, the party must actually climb the statues, using vines growing on the walls in certain places.
The engravings on the floor in front of the Statues are the Adulthood Emblem with four emplacements for offerings. According to the Nopon Merchant this place serves to perform an ancient High Entia coming-of-age ceremony. The Satorl Guardian is fought here during The Ancient Ceremony after the party has collected the four Radiants required for Ancient Ceremony Offerings and placed them on the Adulthood Emblem.
Later the Radiant Pterix is battled here to receive the High Entia Emblem during the The Imperial Ceremony after collecting four new Radiants needed for Imperial Ceremony Offerings and placed on the Adulthood Emblem.
The statues are depicted in the likenesses of women named Soltnar and Khatorl—Satorl Marsh is named after them (Soltnar + Khatorl). Soltnar Seal Island and Khatorl Seal Island (both in Eryth Sea) are also named after them.