Regarding the Rules of Engagement, an issue humans are not much aware of. We, the Zetas, as all groups alien to the Earth, are guided by the Rules of Engagement among ourselves. Humans are not so guided, being free to be themselves in whatever manner they wish. Human societies set their own rules, groups within societies set their own rules, families set their own rules, and sometimes even individual humans, in setting about self improvement, make their own personal rules.
Our rules, in regard to behavior on Earth, are determined by the Council of Worlds, which administers the goings on of intelligent life of all kinds, of whatever density, in this part of the Universe. These rules govern the expected clash between Service-to-Self and Service-to-Others oriented groups. Why are these rules necessary? Humans are a mixture, being in the 3rd Density and in the process of choosing. They find the self-centered in the same vicinity as the altruistic and empathetic. The rules of human society take this into account. Your laws on criminal behavior, for instance, are an example of rules assuming a mix of Service-to-Self and Service-to-Others. They spell out what criminal behavior is, when the line is crossed, and when one intrudes upon another.
In the Service-to-Self oriented groups after 3rd Density, all are, essentially, criminals. They are ruthless and utterly without scruples. They would prey upon each other endlessly. The control over each other is not by criminal rules, but by the rule of the strong. The pecking order is ruthlessly established, by whatever means necessary. Once established, this becomes the law. Essentially the rule of law is the long list of rules from the lawgiver. Democracy has absolutely nothing to do with this process. It is a dictatorship. Thus, as long as all new members are Service-to-Self, homeostasis is established. When in Rome, you do as the Romans do.
In the Service-to-Others oriented groups after 3rd Density, none wishes to hurt the other. Concern for the group, and others, is expected and delivered. Rules are not used to control here, either. Order is established by the group discussing what needs to be done, and various members volunteering. Communication regarding difficulties, requests for assistance, and status of the ongoing concerns of the many are frequent. There are no secrets. There is no need to be defensive against each other, as all have common goals and none means to take advantage of the other. There are no locked doors. All turn their backs on each other without fear. Goods are not hoarded but shared. Service-to-Others entities trust each other utterly, and this trust is not misplaced.
Mix these two groups together, and what would happen?
The Service-to-Self would endlessly take advantage of the Service-to-Others. To some degree, this takes place in your 3rd Density world. The self-centered moan that they are put upon, unfairly treated, are injured and need a lighter load, cut to the quick by some other's treatment of them, and all manner of ruses to take advantage of good hearted folk. In a world of Service-to-Others, where all have let down their guard to concentrate on mutual goals, assuming themselves surrounded by friends, this trust would prove disastrous. In short, the two groups cannot mix. The Service-to-Others, who usually prove to be the majority during any planetary evolution, are given guardianship of their perimeter.
You may choose to call this a type of quarantine of the Service-to-Self, or giving the Service-to-Self a prison colony environment, if you wish. However, this separation is for the benefit of both groups. The Service-to-Self find being around those of Service-to-Others mentality distracting to a great degree. All Service-to-Self entities at one time in their past had empathetic sensitivities toward others. This has been repressed in the interest of service to the self. The Service-to-Self entity does not want to be reminded of this, and if so reminded finds itself distracted and in need of correction for some time to come. Thus, the Service-to-Self wish to avoid those strongly oriented toward Service-to-Others. They are not clambering for the mix, either. The desire for distance is mutual.
So do the two groups never encounter each other? Only when both agree, and under a strict set of rules.
Agreement can involve a group, or an individual. All this is spelled out. An individual may engage an individual, or an individual may engage a group, or a group may engage a group. A group would be a specified number of entities, or a representation of a larger group. In either case, whether for a group or an individual, the type of engagement may be one of three types:
It should be pointed out that these Rules of Engagement cover entities above 3rd Density, who are incarnated. There are additional rules for entities above 3rd Density who are not incarnated, but they are similar. In these matters, the issue of death is defined differently.