The Concept Of Decoration in Islamic architecture
Decoration is a major unifying factor in Islamic architecture and design. For 13 centuries, writes Dalu Jones in a very interesting and informative essay entitled "Surface, Pattern and Light" (in Architecture of the Islamic World, edited by George Michell), decoration has linked buildings and objects from all over the Islamic world -- from Spain to China to Indonesia. Notes Jones, "Islamic art is an art not so much of form as of decorative themes that occur both in architecture and in the applied arts, independently of material, scale and technique. There is never one type of decoration for one type of building or object; on the contrary, there are decorative principles that are pan-Islamic and applicable to all types of buildings and objects at all times (whence comes the intimate relationship in Islam between all the applied arts and architecture). Islamic art must therefore be considered in its entirety because each building and each object embodies to some extent identical principles. Though objects and art differ in quality of execution and style, the same ideas, forms and designs constantly recur." Because little furniture is traditionally used for daily life in Islam, decoration contributes to the creation of a sense of continuous space that is a hallmark of Islamic architecture. Writes Jones, "The layers of surface decoration are increased and the complexity of visual effects enriched by the use of carpets and cushions, which often reflect the same decorative schemes as those found on walls and ceilings. Floors and ceilings contribute to the fluidity of space by the nature of their decoration, since they are often patterned in the same manner as the walls; sometimes, in the case of floors, the decoration actually reproduces carpets. The tomb of I'timad ad-Dawla in Agra, for example, has an inlaid marble floor that exactly reproduces the designs of Mughal carpets."
Jones notes that to the West, Islamic design may seem restricted to two dimensions but that the very character of Islamic design implies three-dimensional possibilities. For example, the interlacing designs, often accompanied by variations in color and texture, create the illusion of different planes. Through the use of reflecting and shining materials and glazes, the repetition of designs, the contrasting of textures and the manipulation of planes, Islamic decoration becomes complex, sumptuous a nd intricate. It is an art of repose, Jones adds, where tensions are resolved. Jones states that, regardless of form, material or scale, this concept of art rests on a basic foundation of calligraphy, geometry and, in architecture, the repetition and multiplication of elements based on the arch. "Allied and parallel to these are floral and figural motifs," Jones writes. "Water and light are also of paramount importance to Islamic architectural decoration as they generate additional layers of patterns and -- just as happens with surface decoration -- they transform space. "Space is defined by surface and since surface is articulated by decoration, there is an intimate connection in Islamic architecture between space and decoration. It is the variety and richness of the decoration, with its endless permutations, that characterizes the buildings rather than their structural elements, which are often disguised. Many devices typical of Islamic architectural decoration -- for example, muqarnas [a honeycomb decoration that can reflect and refract light]-- are explained by a desire to dissolve the barriers between those elements of the buildings that are structural (load-bearing) and those that are ornamental (non-load-bearing)."

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