In the context of Islamic illumination and metaphysics as a whole, the metaphysics of illumination of the Iranian mystic and philosopher, Šihāb ad-dīn Yaḥyā Suhrawardī (1154 - 1209), is undoubtedly a significant highlight. After a brief overview of Suhrawardī's life and works, this paper outlines the main features of his mystical-metaphysical theory of illumination. First, it is clearly indicated that the basis and starting point of Suhrawardī's metaphysics is the Qur’an. Then, in a first step, a brief overview of the classification of the lights is given. In a second step, the individual stages and orders of the manifestations and signs of the divine light are described. Thereafter, the views of lights and the steps on the mystical path to the divine light are presented. The attitude of the ancient Iranian religion and the Platonic-Plotinian philosophy mentioned by Suhrawardī are also taken into consideration.
