Though Rumi does not imply any question before Divine Will. It may be favorable to answer a few.

The goldsmith had to die because greed is always cursed with annihilation. He was selfish enough to buy the slave girl to enjoy her beauty but sold her, not realizing and respecting her love. He was summoned by the prince, left his city, his family, and his folk in search of more money and fame, and agreed to marry the slave girl he had once given away.

God favored the prince as he had passed all his tests to groom his inner soul. He had been patient and enduring. The prince had learned to Love – the art of surrendering before the Divine Will through sacrifice, nurturing, and caring for others with the least expected return. He had not ordered the murder of the goldsmith, but the holy physician carried it out following Divine command.

* (the holy physician could be the angel of death).

The maiden was already a slave girl, so traditionally speaking, she had no will of her own. She was an ignorant soul, in love with the material world (Zahiri Duniya…the physical beauty and smartness of a goldsmith). She could not bear the loss and compromise with the deceit of the goldsmith, regarded it as her failure, and inflicted pain on herself. Allah had provided her with the genuine love of the prince, but she was too obsessed by her loss, too ignorant of the worth of true love, and too arrogant to accept it as a charity from a favorable one.

Insolence and arrogance are human attributes that Allah the Almighty neither favored nor rewarded. And be sure only ignorant ones are arrogant ones. They can never have a ‘will’ of their own because they never learn to surrender before Divine Will. Human Will becomes a Divine Will when it learns to appreciate and follow the Divine scheme of things. It is the “surrender” when the human heart strives to comply with divine virtues and when it learns to sacrifice personal and individual gain before mutual and collective welfare.