In Book Four of the Masnavi, Jalaluddin Rumi presents the story of Sheikh Abdullah Maghribi, who claimed he had not experienced the darkness of night in sixty years. Rumi uses this narrative to illustrate the Sufi concept of continuous inner spiritual illumination. For the spiritually realized mystic, divine light completely eradicates the darkness of ignorance, suffering, and material affliction. Furthermore, this inner light allows the saint to act as a flawless guide, leading disciples safely through the metaphorical 'thorny paths' of the world by transforming their inner reality into a continuous source of divine light.