“…Inspired by ideas of agency and materiality (Latour, 2005) and referring to recent scholarship on iconic presence (Belting, 2016; Meyer, 2012) in religious practices as well as on the ‘ iconic nature of letters’ (Morgan, 2017: 482; emphasis from Morgan), this contribution addresses the nexus between material objects and a medium’s message by exploring the visual, technological and traveling cultures of the Vietnamese in searching for the bodily remains of their loved ones who died in the war. This study thus connects to the investigation of the role of sacred objects in Vietnam, their power and divine presence, which has so far been analysed with regard to actors and agency (Kendall, 2008; Kendall et al, 2010; Hüwelmeier, 2016, 2018b, 2019). In tracing the interactions between a diverse set of actors, material objects and supernatural powers, this article also deals with linkages between pilgrimage and cartography (Geertz, 1988: 10), as the Hiền brothers undertook a journey with a spiritual aim, relying on what I call a spirit map , which consisted of a detailed description of the geographical surroundings that was transmitted by a medium.…”