The Relationship between Religion and Custom in Indigenous Communities in Sumedang-West Java and Tegal-Central Java Regencies

Aim. This research investigates the interaction between Islamic culture and local customs among the Sundanese in Sumedang, West Java, and the Javanese in Tegal, Central Java, Indonesia with the framings of cultural transformation and religious and cross-cultural studies. Methods. This research is field research with the locus of research in the Sundanese community of Sumedang-West Java and the Javanese community of Tegal Regency using the approach of cultural transformation and religious and cross-cultural studies. Results. The research highlights differences in cultural dialogue: Sundanese communities show a more egalitarian interaction between Islamic and ancestral traditions, while Javanese communities show the influence of multi-layered Hindu-Buddhist culture in their Ruwat Bumi ritual processions. Conclusion. Comparison of Aspects of the Procession of Traditional Ceremonies of the Two Cultures, Sundanese Sumedang culture dialogue of Islamic culture and Sundanese culture is more egalitarian, in the sense that cultural dialogue is very easy to occur and the Islamic style is very colorful. Whereas the procession of the Ruwat Budi tradition in the Javanese community of Tegal Regency still uses symbols based on mythology that is believed.