The purpose of this article is to contribute to the discussion on the conceptual division between subject and object, in the specific case of transactions that unite the Wauja Indians, living in the Upper Xingu region in the South Amazon, to various museological institutions. The sale of rituals and/or objects used in their execution has characterised, for the past decade, new forms of relations between White and Indians in the native park of Xingu. Being ethnography I have led in the Wauja, I suggest that these relations should be part of the context of capture and domestication, socio-cosmological dimension, and external signs of power represented by white people.