Mongolian shamanism includes religious beliefs and practises of shamans who enter trances to communicate with deities and spiritual beings who then possess the shaman’s body. Shamans wear costumes and masks and employ ritual artefacts specific for treatments or healing. Music, dance, chanting and sometimes animal sacrifices are part of these rituals. Shamans are believed to be divinely appointed at birth, showing prescribed signs as they age. Each disciple has a teacher but ancestral spirits are mainly responsible for transmitting the knowledge and skills.