In The Niche of Lights, al-Ghazali, “The Alchemist of Happiness,” gives an exegesis of the Qur’anic Lights Verse (Q. 24:35) and the “Veils Hadith.” In doing so, he posits a metaphysics of light, including an ontology and epistemology, from a Sufi perspective. I enjoyed reading al-Ghazali’s The Niche of Lights as much as his autobiographical work, Deliverance from Error, and look forward to reading The Incoherence of the Philosophers. I also enjoyed The film Al-Ghazali: The Alchemist of Happiness by Ovidio Salazar.