Runa culture - deeply rooted, mythic, and evolving - is what the indigenous Kichwa people of the Ecuadorian Amazon live in as their social environment, woven into the physical environment of the Amazon rainforest. Perhaps better said, the Kichwa people live in a web of stories, memories, knowledge of the rainforest, and norms of social responsibility that they experience naturally as jokes, stories, and ceremonies, while we, as outsiders, are able to identify it as "another culture."
From both the inside and the outside, it's clear that Runa culture "is changing" (in the woeful Inconvenient Truth sense), or seen another way, is simply "evolving" naturally." Indeed the environment in which the Kichwa people live today is radically different from how was 50 years ago or 500 years ago. But indigenous culture is evolutionary by design, expected to change with new generations as new stories are created, as the old stories are retold, and as they grow with an ever-changing environment.
Everyday is an evolution of what it means to be Runa, a fully living human being.