In Chapter 31, Poem 15 of Mokhtar Nameh, Farid al-Din Attar illustrates the ceaseless and boundless nature of the spiritual quest. He depicts the heart as lost in an 'infinite desert' (بادیهٔ نامتناهی) on the divine path. The poem addresses the 'restless heart' (دل بیقرار), emphasizing that despite a lifetime of relentless journeying, there is no final destination or resting place in the infinite pursuit of the Divine.