The arabesque is an artistic motif that is characterized by the application of repeating geometric forms and fancifully combined patterns; these forms often echo those of plants and animals. Arabesques are, as their name indicates, elements of Islamic art often found decorating the walls of mosques. The choice of which geometric forms are to be used and how they are to be formatted is based upon the Islamic view of the world. To Muslims, these forms, taken together, constitute an infinite pattern that extends beyond the visible material world. To many in the Islamic world, they concretely symbolize the infinite, and therefore uncentralized, nature of the creation of the one God (Allah). Furthermore, the Islamic Arabesque artist conveys a definite spirituality without the iconography of Christian art. Mistakes in repetitions may be intentionally introduced as a show of humility by artists who believe only Allah can produce perfection, although this theory is disputed.