It is difficult to pinpoint exactly what it is. I assume it is a form of religion but it could be any belief system that demands unquestioned obedience or worship of something "which had the wound by a sword, and did live". It needs to be something worshiped worldwide and historically religious theocracies seem to be the best fit. Its methods will give it away when it comes - convert or die. The real question is are we willing to die for Jesus or reject him?