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.
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."