Ephraem the Syrian
The angel clarified the enigmatic significance of the vision by stating that these represent the four winds of heaven. Under the emblem of these winds are depicted the four kingdoms, which, by God's justice, will be employed to bring judgment upon humanity for their transgressions. Just as winds can collide and be extinguished, so too will these kingdoms face annihilation in their encounters. They are positioned 'before the Lord of all the earth,' indicating their readiness to be dispatched wherever commanded.