In Chapter 10, Poem 9 of Attar's Mokhtar Nameh, the soul is metaphorically addressed as a nightingale that has forgotten its divine origin, acting instead like a fly. Attar uses the imagery of a bird burdened by a 'pack-saddle' to highlight the absurdity of the spiritual soul being weighed down by physical, worldly attachments. The poem serves as a direct call for spiritual awakening, urging the soul to shed these unnatural material burdens, spread its wings, and ascend to its rightful place at the Divine Throne.