There are two levels of Sufism in Pakistan. The first is the 'populist' Sufism of the rural population. This level of Sufism involves belief in intercession through saints, veneration of their shrines, and forming bonds (Mureed) with a ''pir'' (saint). Many rural Pakistani Muslims associate with ''pirs'' and seek their intercession. The second level of Sufism in Pakistan is 'intellectual Sufism', which is growing among the urban and educated population. They are influenced by the writings of Sufis such as the medieval theologian al-Ghazali, the Sufi reformer Shaykh Aḥmad Sirhindi, and Shah Wali Allah. Contemporary Islamic fundamentalists criticise Sufism's popular character, which in their view does not accurately reflect the teachings and practice of Muhammad and his companions.