Currently, Satan allows evil to boil over. Soon, seeing this is too slow, he will pour out his evil, believing that this is his moment of victory.
As a result, Satan’s forces will be totally spent. In a “moment” (a period of time) he will release all his evils one after another. This will be the time of the flood and only those who have chosen to live in Mary’s heart (the new Ark) will survive. When that moment is over, peace will reign over the earth.