Prayer flags hanging near the Ganden Monastery on Wangbur Mountain, in Tagtse County, Tibet. This Monastery is a functioning Gelugpa Buddhist Monastery built on a mountainside at an altitude of around 16250 ft. It was almost completely destroyed during the Chinese invasion. It has now been rebuilt and is once again a vibrant religious centre. A prayer flag is made of cloth and is strung up to bless the surrounding countryside. People believe that the prayers will be blown upward as offerings to their gods and will bring happiness and good health to all who hang them.