and a parallel spiritual movement, Rudolf Steiner's Anthroposophy, significantly affected the further development of his aesthetic. Blavatsky believed that it was possible to attain a more profound knowledge of nature than that provided by empirical means, and much of Mondrian's work for the rest of his life was inspired by his search for that spiritual knowledge. In 1918, he wrote "I got everything from the Secret Doctrine", referring to a book written by Blavatsky. In 1921, in a letter to Steiner, Mondrian argued that his neoplasticism was "the art of the foreseeable future for all true Anthroposophists and Theosophists". He remained a committed Theosophist in subsequent years, although he also believed that his own artistic current, neoplasticism, would eventually become part of a larger, ecumenical spirituality. Mondrian and his later work were deeply influenced by the 1911 Moderne Kunstkring exhibition of Cubism in Amsterdam. His search for simplification is shown in two versions of Still Life with Ginger Pot (Stilleven met Gemberpot). The 1911 version, is Cubist; in the 1912 version, the objects are reduced to a round shape with triangles and rectangles. Paris (1911–1914) In 1911, Mondrian moved to Paris and changed his name, dropping an "a" from "Mondriaan", to emphasize his departure from the Netherlands, and his integration within the Parisian avant-garde. While in Paris, the influence of the Cubist style of Pablo Picasso and Georges Braque appeared almost immediately in Mondrian's work. Paintings such as The Sea (1912) and his various studies of trees from that year still contain a measure of representation, but, increasingly, they are dominated by geometric shapes and interlocking planes. While Mondrian was eager to absorb the Cubist influence into his work, it seems clear that he saw Cubism as a "port of call" on his artistic journey, rather than as a destination. Piet Mondrian’s Cubist period lasted from 1912 to 1917. Netherlands (1914–1918) Unlike the Cubists, Mondrian still attempted to reconcile his painting with his spiritual pursuits, and in 1913 he began to fuse his art and his theosophical studies into a theory that signaled his final break from representational painting. While Mondrian was visiting the Netherlands in 1914, World War I began, forcing him to remain there for the duration of the conflict. During this period, he stayed at the Laren artists' colony, where he met Bart van der Leck and Theo van Doesburg, who were both undergoing their own personal