Meanwhile there has been developing the ghost theory. In all but the rudest groups the double of a deceased man, propitiated at death and afterward, is conceived as able to injure the survivors. Consequently, as fast as the ghost theory becomes established and definite, there grows up another kind of check on immediate satisfaction of the desires--a check constituted by ideas of the evils which ghosts may inflict if offended; and when political headship gets settled, and the ghosts of dead chiefs, thought of as more powerful and relentless than other ghosts, are especially dreaded, there begins to take shape the form of restraint distinguished as religious. For a long time these three sets of restraints, which their correlative sanctions, though becoming separate in consciousness, remain co-extensive, and do so because they mostly refer to one end--success in war. The duty of blood-revenge is insisted on even while yet nothing to be called social organization exists. As the chief gains predominance, the killing of enemies becomes a political duty; and as the anger of the dead chief comes to be dreaded, the killing of enemies becomes a religious duty. Loyalty to the ruler while he lives and after he dies is increasingly shown by holding life at his disposal for purposes of war. The earliest enacted punishments are those for insubordination and for breaches of observances which express subordination--all of them militant in origin. While the divine injunctions, originally traditions of the dead king's will, mainly refer to the destruction of peoples with whom he was at enmity, and divine anger or approval are conceived as determined by the degrees in which subjection to him is shown, directly by worship and indirectly by fulfilling these injunctions. The Fijian, who is said on entering the other world to commend himself by narrating his successes in battle, and who, when alive, is described as sometimes greatly distressed if he thinks he has not killed enemies enough to please his gods, shows us the resulting ideas and feelings, and reminds us of kindred ideas and feelings betrayed by ancient races. To all which add that the control of social opinion, besides being directly exercised, as in the earliest stage, by praise of the brave and blame of the cowardly, comes to be indirectly exercised with a kindred general effect by applause of loyalty to the ruler and piety to the god. So that the three differentiated forms of control which grow up along with militant organization and action, while enforcing kindred restraints and incentives, also enforce one another; and their separate and joint disciplines have the common character that they involve the sacrifice of immediate special benefits to obtain more distant and general benefits.