Mongolian masks - they are used for visualization the characters who appear in traditional Buddhist dances, known as Tsam. The "Tsam" dance is part of the secret tantric rituals. Although its origin is from Tibet, the dance is enriched with various Mongolian cultural elements, namely the creative imagination and aesthetics of Mongolian craftsmen, the roles of heroic figures from folk myths and epics, as well as elements of shamanism and archaic religious phenomena. These Mongolian elements give the dance its own Mongolian character. Dance art is closely linked to the craft of masks. In addition to angry deities, masks also introduce calm characters, depicting happy and humorous faces. Mongolian masks, in comparison with those of other Buddhist countries, are the largest in size and have the most detailed design and also are part of the most exquisite costumes and decorations. Each mask represents the different character and role of the dancer. Mongolian masks symbolize the actual presence of a deity and their eyes have no openings and dancers cannot see through them. Therefore, performers should look through the mouth of the masks, and this feature adds extra height to the artists. Masks are treated as statues as well as sacred objects. When not in use, they are stored in monasteries and worshiped in daily rituals. You can watch the performance  with Mongolian masks of Folklore ensemble "Domog" from Ulaan Baator.