What does dream Act 4 foreshadows?

Dream Act 4 foreshadows the downfall and subsequent death of Pygmalion. When Pygmalion is given a chance to repent of his evil ways and be forgiven by the gods, he refuses and instead threatens them. This act of defiance seals his fate, and the events that follow—including the death of Pygmalion and the destruction of his kingdom—are set in motion.