In Poem 61 (Chapter 4) of Attar's Mokhtar Nameh, the poet employs the metaphor of diving headfirst into the 'ocean of love' to illustrate the spiritual requirement of absolute courage and complete detachment. The seeker is urged to become 'naked of both worlds like a needle', symbolizing the shedding of all material and otherworldly attachments necessary to achieve ultimate immersion and annihilation (Fana) in the Divine.