Isolated in a remote highland plateau, the Toraja People have preserved a Neolithic culture called aluk todolo that featured rice cultivation, traditional boat shaped houses, ancestor worship and, until recently, headhunting. The greatest day of a man's life is his funeral which marks his transition from this plane of existence to the next; this, even if it requires years before the ceremony actually takes place. The ritual cloth known as a porisitutu is used either as a shroud atop the coffin or is hung prominently for all to see. Its primary design element, sekong, is a repeat of interlocking arms which have been interpreted by scholars to be a genealogical diagram that describes how the deceased is now being embraced by an infinity of ancestors. It is also great graphic art by contemporary standards.