It seems as though death ought to have the effect of weakening vital energies, instead of strengthening them. It is, in fact, a very common belief in the inferior societies that the soul participates actively in the life of the body. If the body is wounded, it is wounded itself and in a corresponding place. Then it should grow old along with the body. In fact, there are peoples who do not render funeral honours to men arrived at senility; they are treated as if their souls also had become senile.[115] It even happens that they regularly put to death, before they arrive at old age, certain privileged persons, such as kings or priests, who are supposed to be the possessors of powerful spirits whose protection the community wishes to keep. They thus seek to keep the spirit from being affected by the physical decadence of its momentary keepers; with this end in view, they take it from the organism where it resides before age can have weakened it, and they transport it, while it has as yet lost nothing of its vigour, into a younger body where it will be able to keep its vitality intact.[116] So when death results from sickness or old age, it seems as though the soul could retain only a diminished power; and if it is only its double, it is difficult to see how it could survive at all, after the body is once definitely dissolved. From this point of view, the idea of survival is intelligible only with great difficulty. There is a logical and psychological gap between the idea of a double at liberty and that of a spirit to which a cult is addressed.