At the absolute height of human arrogance, reality can shift in an instant. Just as the king revels in his own power, having entirely forgotten the terrifying warning he received a year prior, sudden divine intervention shatters his illusion of control. The response from heaven is immediate. Before the proud words can even leave the king's mouth, a voice descends from above to announce his complete downfall [מצודת דוד, יוסף אבן יחיא, שטיינזלץ]. The heavenly decree declares that his royal power has been stripped away in that very moment.
Interestingly, this final decree reveals a harsh truth that was previously left unspoken. During the original interpretation of the dream, Daniel did not explicitly state that the king would be removed from his throne. He only promised that the kingdom would be preserved for him until he acknowledged the absolute rule of God. Now, the voice from heaven completes the picture, stating clearly that he is being cast down from his royal seat [מלבי״ם].
A deeper perspective suggests that the loss of his kingdom actually occurred long before this event. The kingship had effectively departed from him the very day he first had the terrifying dream. The execution of the punishment was merely delayed because of the charity he had previously performed. However, the moment his heart filled with pride and he boasted of his own might, that period of grace expired, and the delayed punishment crashed down upon him all at once [אלשיך].
This loss of power extends far beyond political ruin; it is the tragic loss of his very humanity. The king does not physically transform into a beast. Rather, his human intellect is stripped away, leaving him with the consciousness of a wild animal. Driven entirely by these new instincts, he is compelled to live among the creatures of the field and eat grass. This extreme collapse of sanity, where a person completely loses their mind and flees to live among wild herds, mirrors known historical cases of profound mental breakdown [אבן עזרא].