Mario Merz (*1.1.1925 – 9.11.2003) actually began as a painter and did not create his first ‘igloo’ of bundled natural materials until 1968. He considered this form to be the embodiment of protection and security. In 1970 the first arrangements appeared representing the evolutionary growth processes involving the Fibonacci progression (1,1,2,3,5,8,13…). Merz arranged simple natural materials (soil, twigs, peat) in opposition to industrially manufactured ones (glass, steel, fluorescent tubes) in an attempt to demonstrate the absurd artificiality of the world in comparison to nature. Some works symbolize the relationship between culture and nature in early times. For Merz elementary cultural forms such as the igloo stood for human natural forms of life.