This book investigates the convergence of philosophy, scriptural exegesis, and mysticism in the thought of the celebrated Islamic philosopher Mullā Ṣadrā (d. 1050/1640). Through a careful presentation of the theoretical and practical dimensions of Ṣadrā’s Qur'ānic hermeneutics, Mohammed Rustom highlights the manner in which Ṣadrā offers a penetrating metaphysical commentary upon the Fātiḥa, the chapter of the Qur'ān that occupies central importance in Muslim daily life. Engaging such medieval intellectual giants as Fakhr al-Dīn al-Rāzī (d. 606/1210) and Ibn 'Arabī (d. 638/1240) on the one hand, and the wider disciplines of philosophy, theology, Sufism, and Qur'ānic exegesis on the other, Ṣadrā’s commentary upon the Fātiḥa provides him with the opportunity to modify and recast many of his philosophical positions within a scripture-based framework. He thereby reveals himself to be a profound religious thinker who, among other things, argues for the salvation of all human beings in the afterlife.