The main religion in Saudi Arabia is Islam. The Kingdom is known as the birthplace of Islam, with its two holiest cities, Mecca and Medina, playing a central role in the religion. All citizens are required to uphold Islamic practices and laws. The state enforces a strict interpretation of Sunni Islam, specifically the Wahhabi doctrine, which influences various aspects of life, including governance, education, and social customs. Pilgrimages to Mecca during the Hajj season attract millions of Muslims globally, symbolizing the unity of the Islamic faith. The country also hosts numerous mosques and Islamic institutions dedicated to education and worship.