The tendency of brotherhood is instinctive in living beings, not only amongst men, but even among birds and animals. In the lower creation where the ego begins its work and where the ego rises against its brother, even in that stage there are birds and animals which can be brought together. At the same time by studying the lower creatures we can understand that in the lower stages even the destructive creatures can unite; and that gives us an idea that even in the lower stages there is already a tendency towards a higher stage of evolution.