Though the owners are usually indifferent to humans, they do inflict
sickness and death on those who must inevitably invade their domains to
survive---to hunt, fish, and farm. It is the shaman who must intervene,
paradoxically, by means of the very plant, ayahuasca, whose source of
power lies with the owners. He comes to see, as the spirits do, human
settlements in the depth of the river and the center of the forest. By
sharing the spirits' food and listening to their powerful songs, he
mediates between them and the Piro."
Vincent Crapanzano, Negative Horizons.
Vincent Crapanzano, Negative Horizons.