by names such as the Bayt Allah (). and Bayt Allah al-Haram (). Tawaf Ṭawāf () is one of the Islamic rituals of pilgrimage and is compulsory during both the Hajj and Umrah. Pilgrims go around the Kaaba (the most sacred site in Islam) seven times in a counterclockwise direction; the first three at a hurried pace on the outer part of the Mataaf and the latter four times closer to the Kaaba at a leisurely pace. The circling is believed to demonstrate the unity of the believers in the worship of the One God, as they move in harmony together around the Kaaba, while supplicating to God. To be in a state of Wudu (ablution) is mandatory while performing tawaf as it is considered to be a form of worship ('ibadah). Tawaf begins from the corner of the Kaaba with the Black Stone. If possible, Muslims are to kiss or touch it, but this is often not possible because of the large crowds. They are also to chant the Basmala and Takbir each time they complete one revolution. Hajj pilgrims are generally advised to "make ṭawāf" at least twice – once as part of the Hajj, and again before leaving Mecca. The five types of ṭawāf are: Ṭawāf al-Qudūm (arrival ṭawāf) is performed by those not residing in Mecca once reaching the Holy City. Ṭawāf aṭ-Ṭaḥīyah (greeting ṭawāf) is performed after entering al-Masjid al-Haram at any other times and is mustahab. Ṭawāf al-'Umrah (Umrah ṭawāf) refers to the ṭawāf performed specifically for Umrah. Ṭawāf al-Wadā''' ("farewell ṭawāf") is performed before leaving Mecca.Ṭawāf az-Zīyārah (ṭawāf of visiting), Ṭawāf al-'Ifāḍah (ṭawāf of compensation) or Ṭawāf al-Ḥajj (Hajj ṭawāf) is performed after completing the Hajj. The Tawaf has its origins in the religion of the Najranite pagans, who walked around the Kaaba in an act of devotion to their creator god, Allah (not to be confused with the monotheistic god of Islam by the same name). This practice was adopted by Mohammad after some reform As the Qibla The Qibla is the direction faced during prayer. The direction faced during prayer is the direction of the Kaaba, relative to the person praying. Apart from praying, Muslims generally consider facing the Qibla while reciting the Quran to be a part of good etiquette. Cleaning The building is opened biannually for the ceremony of "The Cleaning of the Sacred Kaaba" (). The ceremony takes