The tale of Roro Jonggrang carries a significant moral lesson. It highlights the importance of honesty and integrity in our dealings with others. Roro Jonggrang's deceitful act ultimately led to her downfall, serving as a reminder that deception has consequences. Furthermore, the story also touches upon the themes of perseverance and the power of collective effort, as seen in Bandung Bondowoso's attempt to fulfill the seemingly impossible tasks.