In the book "Charmed Images," the researcher Suely Brígido describes and presents the results of her field experience among the Indians from Karajá
villages Hãwalò (TO), and Boiry, Krehãwa (MT), Brazil. It emphasizes the form of relationship between the Indians and ritualistic
context. In the field recorded Ijàso-wi, songs performed exclusively by men during the ritual dance of Aruanã - this myth in the history
of creation of the cosmos Karajá - and Ibru, cries issued by Indian women, sometimes in the form of recitative, and in the form of song,
interspersed with whispers and moans during the funeral rituals. Also collected various patterns of the Indian designs that the Karajá utilize as
ritual clothes, and crafts made of ceramics, wood or straw.