A prayer rug or prayer mat is a piece of fabric, sometimes a pile carpet, used by Muslims, some Christians and some Baha'i during prayer. In Islam, a prayer mat is placed between the ground and the worshipper for cleanliness during the various positions of Islamic prayer. These involve prostration and sitting on the ground. A Muslim must perform (ablution) before prayer, and must pray in a clean place. Prayer rugs are also used by some Oriental Orthodox Christians for Christian prayer involving prostrations in the name of the Trinity, as well as during the recitation of the Alleluia and Kyrie eleison. Its purpose is to maintain a cleanly space to pray to God and shoes must be removed when using the prayer rug. Among Russian Orthodox Old Ritualists, a special prayer rug known as the Podruchnik is used to keep one's face and hands clean during prostrations, as these parts of the body are used to make the sign of the cross. Many new prayer mats are manufactured by weavers in a factory. The design of a prayer mat is based on the village it came from and its weaver. These rugs are usually decorated with many beautiful geometric patterns and shapes. They are sometimes even decorated with images. These images are usually important Islamic landmarks, such as the Kaaba, but they are never animate objects. This is because the drawing of animate objects on Islamic prayer mats is forbidden. For Muslims, when praying, a niche, representing the mihrab of a mosque, at the top of the mat must be pointed to the Islamic center for prayer, Mecca. All Muslims are required to know the qibla or direction towards Mecca from their home or where they are while traveling. Oriental Orthodox Christians position their prayer rugs so that they face east, the direction of prayer towards which they offer prayer. History and how it is used In the Baha'i Faith In the Baha'i Faith, prayer rugs or prayer mats are not required, though may sometimes be used as a way to fulfill the instruction written in the Baha'i mother-book The Most Holy Book mentioning to "prostrate yourselves on any surface that is clean". In Christianity Prayer rugs are used in some traditions of Oriental Orthodox Christianity and Western Orthodox Christianity, to provide a clean space for believers to offer Christian prayers to God. During the seven fixed prayer times