Verse 5: "Then the angel took the censer and filled it with fire from the altar and threw it on the earth; and there were peals of thunder, voices, flashes of lightning, and an earthquake."

This angel starts this process symbolized by taking fire from the altar and throwing it on the earth. The "peals of thunder" is the clergies pounding an their altars against Baha'u'llah and the angels. There will be voices raised both for and against the Revelation of Baha'u'llah and His World Order. The "loud noises" are the explosions of the nuclear bombs, the "flashing of lightning" is the missiles lighting up the sky which is the nuclear war, and "the great earthquake"—like the world had never witnessed before—will take place after the nuclear war.