Masks were created to portray figures of their myths and oral history. The Atka people believed that another people lived in their land before them. They portrayed such ancients in their masks, which show anthropomorphic creatures named in their language. Knut Bergsland says their word means "like those found in caves." Masks were generally carved from wood and were decorated with paints made from berries or other natural products. Feathers were inserted into holes carved out for extra decoration. These masks were used in ceremonies ranging from dances to praises, each with its own meaning and purpose.