In Chapter 18, Poem 12 of the Mokhtar Nameh, Attar of Nishapur highlights the fundamental Sufi concepts of Fana (annihilation) and Baqa (eternal subsistence). The poem dictates that reaching eternal spiritual life (baqa) is contingent upon the seeker's complete detachment and annihilation of the worldly ego (fana). The journey is perilous, metaphorically demanding the seeker's head, yet Attar encourages the spiritual traveler to walk the path fearlessly to reach the ultimate destination of unity.