The event often takes place after the last harvest of the year to dispel evil spirits and diseases. 

It involves the brave men dancing barefoot on a fire.

Vietnam has about 3,700 Pa Then people, living mainly in Tuyen Quang and Ha Giang provinces.

A 90-minute ritual to offer boiled meat, rice and wine to gods
Pa Then girls dancing around the fire
Each man performing barefoot in 3-4 minutes
A 20-year-old man showing his hands and feet unscathed