This paper explores the contextualisation of Erik Erikson’s Psychosocial Theory within the Ghanaian sociocultural framework to integrate spirituality, mental health, and sustainable living for holistic wellbeing. The problem addressed is the limited application of Western developmental theories, such as Erikson’s, in African contexts where spirituality and communal living play central roles in individual identity and psychological development. Using a qualitative descriptive research design, data were collected through semi-structured interviews and focus group discussions with psychologists, religious leaders, and community members across regions in Ghana. Thematic analysis revealed that Erikson’s psychosocial stages align with Ghanaian values of interdependence, moral responsibility, and spiritual growth, but require reinterpretation to reflect indigenous belief systems and ecological ethics. Findings emphasise that integrating spiritual practices and sustainable living principles enhances psychosocial balance and mental wellbeing throughout the lifespan. This study adopted a qualitative research design, using a literature review and case analysis to explore Erikson’s psychosocial theory in relation to mental health and wellbeing in Ghana, from scholarly articles, journals, books, and relevant Ghanaian mental health reports. Findings were thematically analysed to contextualise the theory within the Ghanaian socio-cultural setting. The study recommends incorporating culturally grounded spirituality and environmental education into mental health programs and developmental counselling. It also advocates curriculum reforms in psychology education in Ghana to promote culturally responsive, sustainable approaches to wellbeing.