they enable the construction of larger tongkonan. Architecture in the style of a tongkonan is still very common. Various administration buildings were built in this style in recent years, e.g. the Kecamatan building in Rantepao. Wood carvings To express social and religious concepts, Torajans carve wood, calling it Pa'ssura (or "the writing"). Wood carvings are therefore Toraja's cultural manifestation. Each carving receives a special name, and common motifs are animals and plants that symbolise some virtue. For example, water plants and animals, such as crabs, tadpoles and water weeds, are commonly found to symbolise fertility. In some areas noble elders claim these symbols refer to strength of noble family, but not everyone agrees. The overall meaning of groups of carved motifs on houses remains debated and tourism has further complicated these debates because some feel a uniform explanation must be presented to tourists. Torajan wood carvings are composed of numerous square panels, each of which can represent various things, for example buffaloes as a wish of wealth for the family; a knot and a box, symbolizing the hope that all of the family's offspring will be happy and live in harmony; aquatic animals, indicating the need for fast and hard work, just like moving on the surface of water. Regularity and order are common features in Toraja wood carving (see table below), as well as abstracts and geometrical designs. Nature is frequently used as the basis of Toraja's ornaments, because nature is full of abstractions and geometries with regularities and ordering. Toraja's ornaments have been studied in ethnomathematics to reveal their mathematical structure, but Torajans base this art only on approximations. To create an ornament, bamboo sticks are used as a geometrical tool. On 24 March 2022, about 125 patterns were given communal intellectual property copyright sertificates by the Ministry of Law and Human Rights, in order for protecting of traditional culture expressions. Funeral rites In Toraja society, the funeral ritual is the most elaborate and expensive event. The richer and more powerful the individual, the more expensive is the funeral. In the aluk religion, only nobles have the right to have an extensive death feast. The death feast of a nobleman is usually attended by thousands and lasts for several days. A ceremonial site, called rante, is usually prepared in a large, grassy field where shelters for audiences, rice barns, and other ceremonial funeral structures are specially made by