Les deux lumières by Henri Coton-Alvart explores the metaphysical and symbolic duality of light as a central theme in esoteric thought. Drawing from Western mystical traditions, the book examines how opposing yet complementary forces—often represented through the metaphor of two lights—shape spiritual understanding and inner transformation. Coton-Alvart, known for his work in initiatic philosophy, presents a contemplative framework that bridges ancient wisdom and modern consciousness. The text invites readers to reflect on polarity, balance, and illumination not merely as physical phenomena but as profound archetypes within the human experience. Published by Dervy, a respected French publisher specializing in spiritual and philosophical works, this volume contributes to the discourse on symbolic interpretation in esotericism.