Bodies of water in general have great symbolic, spiritual, and practical importance for indigenous religions and cosmologies. Before European occupation, rivers, lagoons, mangroves, sandbank ecosystems, and the sea itself were understood not merely as natural resources, but as living entities, endowed with spiritual agency and integrated into the order of the world. Peoples of Tupi origin, such as the Tupinambá and the Temiminó, established their relationship with the landscape based on a worldview in which nature, ancestry, and spirituality formed an inseparable whole.
La France Antartique, that is, Rio de Janeiro, based on the voyages of Villegagnon and Jean de Léry. 1557 / Collection of the Bibliothèque nationale de France.
In Indigenous cosmology, water was associated with the origin of life, the circulation of vital energies, and communication with the spirit world. Rivers and lagoons functioned as spaces of passage and transformation, linked to creation myths and the journeys of mythical ancestors. Guanabara Bay, for example, was not just a strategic geographic space, but a symbolic territory, marked by mythical narratives, ritual practices, and specific forms of occupation, where fishing, navigation, and collective rites reinforced communal and spiritual bonds.
[View of part of the city and Bay of Rio de Janeiro, Barra, Ocean, taken from the heights of Corcovado]. Théodore Alphonse Galot. Rio de Janeiro, RJ: [s.n.], 1850. Collection of the Fundação Biblioteca Nacional.
This sacred dimension extends beyond the territorial limits of what we know today as the city of Rio de Janeiro. For example, the cosmovision of the Tukano, Desana, and other peoples of the Upper Rio Negro establishes Rio de Janeiro as the geomythological epicenter of the origin of life on Earth. For them, what we know as Guanabara Bay is the Lake of Milk (Diá ahpikõdihtaru or Opekõ Dihtará), the sacred place where the Canoe of Transformation (Pamürí yuküsiru) emerged after a cosmic crossing along the Milky Way. This "Snake-Canoe" brought the primordial human beings, and it was on the shores of this lake that the first malocas arose and the fundamental transformation of humanity took place.
Thus, Guanabara Bay is described as a bowl of milk or a basin of precious stones and gold, representing fertility and original nourishment. Its original name, Guajá-nã-bará, reflects its grandiosity as an "arm of the sea that looks like the ocean." If we look closely, the shape of the Bay resembles that of the female womb, which reinforces its character as a place where life takes shape.
Topographic maps of the captaincy of Rio de Janeiro: commissioned by the Most Illustrious and Most Excellent Sr. Conde da Cunha, Captain General and Viceroy of the State of Brazil. Manuel Vieira Leão. 1767 / Fundação Biblioteca Nacional Collection
For these peoples, Guanabara Bay remains a living multidimensional crossroads, holding the memory of a sacred past that continues to nourish the spirituality of native peoples.