This article explores the use of intoxicants by a community of Kulina Indians in western Brazil. I suggest that Kulina intoxication through alcohol, tobacco, and ayahuasca is best understood as a form of semiotic appropriation of the identity of cosmological "others," including animal spirits, creator beings, other Indian groups, and Brazilians. I consider how embodying practices, such as song and physical movement, enhance the experience of being an "alter," facilitated by the alterations in consciousness produced by intoxicants. k e y w o r d s : Amazonia, Kulina Indians, Ayahuasca, alcohol, intoxication, altered consciousness