In Chapter 12, Poem 5 of Attar's Mokhtar Nameh, the poet explores the realization that after a lifetime of relentless outward seeking—likened to the ceaseless movement of the heavens and traversing the world a hundred times—the ultimate barrier or 'veil' (حجاب) separating the seeker from the divine is the seeker's own self or ego. This reflects a central Sufi theme: true spiritual arrival requires inward reflection and the dissolution of the self, demonstrating that outward journeys are futile as long as the ego remains.