Chuseok(harvest festival or Thanksgiving Day) is one of the two major national holidays in Korea along with the New Year's Day.

It is celebrated on the 15th day of the 8th month of the lunar calendar on the full moon. Like many other harvest festivals around the world, it is held around the autumn equinox, i.e. at the very end of summer or in early autumn.

As a celebration of the good harvest, Koreans visit their ancestral hometowns and share a feast of Korean traditional food such as songpyeong and rice wines such as sindoju and dongdongju.

In Daesoon Jinrihoe, Chuseok Chiseong is held at 1 am before the morning of Chuseok day in Main Sanctuary Building (Bonjeon) at Yeoju headquarters temple complex.

In the pictures below, participants are waiting in line to get in the building and attend Chiseong ceremony. 

After Chiseong is over at around 5 am, they head to their home to attend morning Charae ceremony with family members or visit ancestral graves.