Testimony and witnessing require sentiency, not humanity. Sentiency is distinguished here as the capacity to experience energetic coalescing between elements/entities/presences and to derive a response from such encounters. Taking as its focal point the kincentric ecology and lifeworld of Yanyuwa Country in the south-west Gulf of Carpentaria, northern Australia, this paper strives to expand the conceptual roots for a discussion of testimony and witnessing through the principle of “unflattening.” Unflattening is a commitment of orientation, one that counteracts the type of narrow, rigid thinking that is flatness, a condition in which humans are often unable to see past the boundaries of current frames of mind, the limits of our existence, our ontology, epistemic and moral habit (Sousanis, Unflattening (Harvard UP, 2015)). In a settler colonial context such as Australia, these are conditions which reflect a dominant epistemic tradition of the West, which relies upon certain ontological habits, reflective of a capitalist, modern, neo-liberal and individualistic tendency. But this is not the only Law and way of knowing that exists across the great landmass of Australia, mapped as it is by the languages and Laws of diverse Indigenous language groups. In Yanyuwa Country, communication between multifarious agents is common, ranging from those between humans, deceased kin who reside as “old people” in Country, Ancestral Beings which have become the embodiment of Country, non-human animals, elements, objects and places. Each and all are capable of communicating; be it as expressions of recognition of one another, revelation of emotional states, health or disorder, responsivity to the presence of others, Law and local empiricism. Drawing on my ethnographic encounters with Yanyuwa families, I aim, throughout this paper, to unflatten on three fronts: first, expand the relational scope of potential communicative pathways to take in sentient presence as a catalyst for relationality (carried forth by responsiveness to and between presences), second, examine the multidimensional nature of testimony and third, expand our vision of the enactment of witnessing – to consider who, what and when. I consider Indigenous, specifically Yanyuwa, relational ontologies as they bond and unify the human and non-human across a field of sentiency and communicative intention, shifting the focus or primal orientation to either side of and all around the human.