In Chapter 32, Poem 5 of Attar's Mokhtar Nameh, the poet employs the metaphor of fire to characterize the intensity of a lover's spiritual servitude (بندگی) and longing. The warmth originating from the lover's heart inevitably causes them to 'blaze' like a fire. This illustrates the mystical concept that true, complete devotion to the Divine consumes the lover, transforming their inner spiritual yearning into an active, all-consuming force.