Abstract: Al-Ghazali (d. 1111) is one of the most important theologians, philosophers, and Sufis of Islam. Born around 1056 in northeastern Iran, he became the holder of the most prestigious academic post in Islamic theology in Baghdad, only to renounce that position and teach at small schools in the provinces for no money. His contributions to Islamic scholarship range from responding to the challenges of Aristotelian philosophy to creating a new type of mysticism in Islam, and integrating both these traditions—falsafa and Sufism—into the Sunni mainstream. Using the most authoritative sources, including reports of his students, his contemporaries, and his own letters, this book reconstructs every stage in al-Ghazali’s turbulent career. The al-Ghazali that emerges still offers many surprises, particularly on his motives for leaving Baghdad and the nature of his “seclusion” afterwards. In its close study of al-Ghazali’s cosmology—meaning, how God creates things and events in the world, how human acts relate to God’s power, and how the universe is structured—the book reveals the significant philosophical influence on al-Ghazali. His cosmology has always been one of the most challenging aspects of his work. This book shows how al-Ghazali created a new discourse on cosmology that moved away from concerns held earlier among Muslim theologians and Arab philosophers. This new cosmology was structured to provide a framework for the pursuit of the natural sciences and a basis for science and philosophy in Islam to continue to flourish beyond the 12th century.

Keywords: Islamic philosophy, Arabic philosophy, Islamic theology, rationality in Islam, Sufism, al-Ghazali, Avicenna, Aristotelianism, cosmology, causality, modal theories