The text describes three different ritual contexts in Brazil where ayahuasca or related DMT-containing preparations are used: a festival in Bahia, an Umbanda terreiro in Pernambuco, and a Catimbó ritual in Rio Grande do Norte. It notes that a smokable version called changa, which became popular among psychonauts, was reportedly invented in Australia using acacia instead of jurema as the DMT source, a preparation Graham St John refers to as "aussiewaska."
This chapter traces the varied uses of DMT extracted from Mimosa tenuiflora (black jurema) across traditional, scientific, and neo-shamanic contexts. Chemist Jonathan Ott popularized a recipe for anahuasca (also called juremahuasca or pharmahuasca) that combines root bark powder from the tree, which grows in semi-arid regions of tropical America, with Syrian rue as a source of beta-carbolines (MAO inhibitors). Brazilian healer Wanda Maria da Silveira Barbosa (Yatra) used this recipe in the Netherlands to treat substance abusers after she was prevented from using ayahuasca there.