Abstract. Indigenous people view both themselves and nature as part of an extended ecological family that shares ancestry and origins. It is an awareness that life in any environment is viable only when humans view the life surrounding them as kin. The kin, or relatives, include all the natural elements of an ecosystem. Indigenous people are affected by and, in turn, affect the life around them. The interactions that result from this ‘‘kincentric ecology’’ enhance and preserve the ecosystem. Interactions are the commerce of ecosystem functioning. Without human recognition of their role in the complexities of life in a place, the life suffers and loses its sustainability. Indigenous cultural models of nature include humans as one aspect of the complexity of life. A Rara´muri example of iwı´gara will serve to enhance understanding of the human–nature relationship that is necessary in order to fully comprehend the distinct intricacies of kincentric ecology. Key words: ceremonial cycle; Chihuahua, Mexico; human–nature relationship; indigenous land management; interconnectedness; iwı´gara; kincentric ecology; Rara´muri; Sierra Madres;Tarahumara