The purpose of this text is to be academic-scientific praxis commited with a geo-history-social transformation of a object body of water in a subject body of water, in other words, recognize the body of water as formed by human cultural scraps. It was decided for a bioregional vision with the purpose of rescue human community (simbolism, history and culture) and biotic community connection, since it is essential to get this kind of knowledge to this research. It´s necessary evoke the Piraí river as a icon of pertinence in the contruction of the social-environmental identity of the Piraí cintizens, to indicate elements for positive actions of citizenship. The Piraí river was subject of two major changes that resulte in large environmental changes and consequently, deep social-culture transformations. That is of acept rescue the river as body of water, its history redeemed by the memory of its enviromental subjects, its sacredness, veiled and unveiled by its representations of identities, and profanity. It´s necessary to remake the meaning of water and body concepts, to evoke the body of water in its social culture devir, in its streams, route and course of territoriality and (not) territoriality, with the purpose of constructing a new reality aiming at the quality of life of its population.