"This paper explores the transformative impact of social media on mediumship practice within the context of Mother Goddesses worship (Dao Mâu) in contemporary Vietnam. By examining the ways in which spirit mediums and practitioners utilise social media platforms, the study reveals that these digital spaces facilitate the open expression of belief, foster connections among practitioners, and enable the sharing and promotion of spiritual services as well asthe online trade in ritual costumes and objects. Furthermore, social media has become a catalyst for emerging trends directly influencing the ritual practices and increasing the visibility of spirit mediums in today's society, creating generational shifts between younger spirit mediums and their predecessors, who practiced their belief in pre-renovation Vietnam under precarious circumstances. As rituals become more visible and accessible through social media, the interplay between digital and spiritual realms becomes increasingly significant. The findings suggest that social media not only enhances a sense of community among practitioners that transcends geographical boundaries, but also shapes the continuing developments of this traditional practices, contributing to a dynamic landscape of Mother Goddesses worship in Vietnam today. This research underscores the agency and significance of digital platforms, in particular social media, in transforming spiritual expressions and adapting cultural traditions in the modern era." (Abstract)