This school takes Indonesian ethnic philosophies as its source of inspiration. Its assumption is mythologies, legends, folklores, the way an ethnic group builds its house and holds its ceremonies, literature it keeps, the epics the ethnic group writes, all bases foundation of its philosophy. This 'philosophy' cannot change; it remains the same, from the beginning to the end of the world, and it is also 'the Good'. It guides every member of the group to the origin of group creation on earth (in Javanese, "sangkan") and the "telos" of the life the group reaches to (in Javanese, "paran"), so the member cannot go astray.