This chapter explores the dynamic changes in burial customs in Viking Age (c. 800–1050 CE) Scandinavia focusing on the transition from cremation to inhumation often associated with Christianisation. Departing from the traditional teleological and anthropocentric perspectives that views these changes as intimately related to religious conversion, the study adopts a more nuanced perspective. The analysis focuses on two dual-rite cemeteries, Ljungbacka and Lilla Ullevi, in southern and central-eastern Sweden, respectively, examining the coexistence of cremation and inhumation practices. The temporal and spatial dynamics of this coexistence challenge the monocausal view of conversion-driven change, suggesting that the process was more nuanced and context dependent. The chapter highlights the importance of understanding burial practices as constantly evolving within complex mortuary systems. It emphasises the importance of examining smaller-scale and shorter-term contexts in order to understand how changing practices were experienced within actual communities.