In Chapter 6, Poem 40 of Attar's Mokhtar Nameh, the poet utilizes the metaphors of spiritual alchemy to describe the elevation of the self. The transformation of the 'stone of existence' into a ruby, and a mere 'raindrop' into a precious pearl, symbolizes the refinement of the seeker's mundane nature through spiritual discipline. The poem concludes that by deeply subduing the lower soul or ego, the spiritual heart is permanently awakened and set into a state of restless, elevated yearning.