The author focuses on the anthropological observation of Unio do Vegetal (UDV), which he started 15 years ago and continues up to the present, as well as on field research that he carried out in 1998 in the UDV unit called Nucleus Alto das Cordilheiras, in Campinas. It was the basis of author's Master's thesis in social anthropology the city of Campinas is situated in the State of Sao Paulo,...