Book excerpt: This book studies the Indonesian martial art Pencak Silat and related media practices, and, building on that, assesses mediatization processes, meaning the potential influence of technology-based media practices. Pencak Silat represents a cultural system of values and beliefs, with hierarchical structures and relations, and social advancement being mediated in embodied social learning. The study contributes to martial arts studies and media studies, demonstrating potentials and limitations of media technologies and their (dis-)embodiment – their extension or reduction of the body as medium, and their embeddedness in or detachment from a given socio-cultural context. With Pencak Silat being practiced all over Indonesia, by a large part of the population, the thesis also represents a contribution to Indonesian studies. Based on extensive fieldwork (between 2008 and 2016), the study analyzes martial arts and/as media in Indonesia, and presents an ethnography of Pencak Silat and mediatization.