For what purpose is an ending such as “Wa-innī jadīrun idh ballaghtuka bi-l-munā” apt?

Final Chapter: Excellence of Opening, Barāʿat al-Istihlāl, Transition and Conclusion

• To plagiarise an entire earlier poem
• To gather praise and the fulfilment of hope
• To create an ominous opening
• To begin an unrelated legal dispute