The Quran, revered by Muslims as the word of God revealed to Prophet Muhammad (peace be upon him), stands as a beacon of guidance and wisdom for millions of believers worldwide. Beyond its role as a religious scripture, the Quran serves as a timeless guide for spiritual enlightenment, offering seekers profound insights, moral guidance, and transformative teachings that resonate across cultures and centuries. This essay provides an overview of the Quran as a source of spiritual enlightenment, exploring its key themes, guiding principles, and enduring relevance in the quest for inner illumination.