Khomeini was a marja (“source of emulation”) in Twelver Shia Islam, a Mujtahid or faqih (an expert in Sharia) and author of more than 40 books, but he is primarily known for his political activities. He spent more than 15 years in exile for his opposition to the last shah. In his writings and preachings he expanded the theory of welayat-el faqih, the “Guardianship of the Islamic Jurist (clerical authority)”, to include theocratic political rule by Islamic jurists.
