Aluk Todolo is the rule and norm of life owned by Toraja tribe in South Sulawesi since a long time ago. Aluk Todolo deals with governmental systems, social systems, and religious systems. In terms of belief, Toraja people believe in one God which they called Puang Matua. Even so, the adherents of Aluk Todolo is relatively open to modernizations from outside.
Source of pic: https://way4x.wordpress.com/cerita-tanah-leluhur/aluk-todolo-kepercayaan-suku-toraja/