In Chapter 16, Poem 11 of Attar's Mokhtar Nameh, the poet explores the mystical theme of the heart's solitary endurance of profound sorrow. The heart voluntarily casts itself into the turbulent sea of calamity, taking upon itself the grief of the entire world. By doing so, it entirely foregoes immediate happiness, postponing joy indefinitely to an uncertain 'tomorrow'. This reflects the spiritual state where the lover embraces total suffering, abandoning all desire for personal comfort or worldly pleasure.