ABSTRACT Decoloniality and deconversion involve critically reassessing and rejecting previously held belief systems. Drawing on the work of Bernard Lonergan, SJ, this paper explores these concepts as transformative shifts in values and behaviors from a broadened understanding. In this instance, both notions refer to internal processes of refining one's perspective through seeking personal transcendence. The aim is for authentic being and becoming. One can undergo these changes—freeing oneself from distortions—while maintaining religious, social and /or cultural affiliations. This understanding of the interconnecting threads of decoloniality and deconversion as internal processes arise from my experience as a theologian, educator, and pastoral practitioner, working with women religious in Melanesia, in both Papua New Guinea and the Solomon Islands, and my adopted country of Australia. Internal processes function to locate meanings and values within the roots of human consciousness. They are crucial for greater agency and authentic living. This is vitally important for newly independent nations and their diverse populations, as in Melanesia, where social suffering can seem overwhelming and prolonged, to the point of being a social impasse where, ' normal manner of acting is brought to a standstill, and ironically, impasse is experienced not only in the problem itself put also in any solution rationally attempted.' Indeed, decoloniality is a form of deconversion. The inter-twining processes are universal and not confined solely to past colonies, as they are located within the human cognitional operations. They concern authenticity, authority and power.