This research has the intention of studying the meaning of the ritualistic use of ayahuasca to some frequenters of the Mestre Yajé temple, located in the district of Taiaçupeba in Mogi das Cruzes, state of São Paulo, Brazil, considering the possibility that this use may lead to a closer contact with what is proper, according to Heidegger existential analysis. Used for a long time by the Amazonian Indians, the ayahuasca tea is made of a liana and a plant, both from the Amazonian forest. This use got into the occidental culture in Brazil through the traditional Brazilian religions, such as Santo Daime, Barquinha and União do Vegetal. These religions were born from the contact between the Brazilian rubber latex extractors and the local Amazonian Indians, and then spread all over the country. The phenomenological method of investigation was used in this research. The data colection consisted in an interview with the master of the temple, with the purpose of achieving an exact meaning of the ritual and its intention, followed by a group activity. The group was composed by five subjects that participate in the sessions of the temple with ages above 18 years old. The group activity consisted of a directed fantasy, and then an art expression aiming a higher contact of the person with its own experience with ayahuasca. Afterwards a group discussion happened, in this discussion each person talked about what he has produced in the activity, connecting the experience with their own relationship with the tea. This material, attached to the observation of the activity, was analyzed in a phenomenological way, with the intention of clarifying what was told by each fellow. These meanings were divided into some themes brought by the analysis: sensibility, feeling yourself as part of something, conflict/duality, cleaning, learning and relationships. Observing the analysis, it was attempted to realize where the report of the fellows appeared as a moment when the person would be geting in contact with is more proper of his’ being. This happened to all the subject, but in a different way to each of them. An individual devolution was made by the end of the work, telling what we could perceive in their reports. We concluded that this meeting with what is properly in his own appears in the meaning of the ritual use of ayahuasca, even thought this meaning is different to each one of the subjects. Key words: Ayahuasca, phenomenological method, meaning.