Based on

Movies like Horses of Life and Death (1991)

The Pasola, a traditional jousting battle with hundreds of horses and riders, is the Sumbanese New Year celebration, and also a ritual that anticipates the rice harvest. It is staged to welcome the annual swarming of sea worms on the western beaches, since the worms are seen as representing the spirit of the rice crop. The spirit of the fertility of the seas and the land comes from the body of a sacrificed girl, and her return each year is celebrated with a dramatic display of masculine virility, courage, and horsemanship.