If you can provide the source or author, I can give you a tailored summary.
The dance is a ritual performance, where the "sacred girl" is an avatar of a deity. The exposed armpits, in this context, are not intended to be overtly sexual but are a pose of devotion or classical beauty. The Sacred Girl Dancing and Showing Armpits
The essay could be analyzing a traditional dance form where such movements are codified, requiring the audience to view the dancer through a cultural lens rather than a Western sexualized one. If you can provide the source or author,