Life on the astral plane has its end for the same reason that it comes to a close on the physical plane. Nature's purpose has been accomplished and the man is ready to go on farther in his evolution. The length of the astral life varies just as it does in the physical world. Some physical lives are very long and sometimes only when five scores of years, or more, have passed does the ego withdraw. Other lives are very short and scarcely well begun when they unexpectedly come to a close. There is nevertheless a general average to be found. It is at least possible to make averages for different classes of people and to say that a majority of those who are of ordinary health and strength are likely to attain a stated age, while it is certain that the majority of those who have such, and such, a physical handicap will lose their physical bodies when they are much younger. Such general rules may also be applied to the astral life. Here a long and alert life is most desirable because the purpose of the physical plane is to gather experience that shall be transmuted into wisdom on a higher plane. It is a seed time against a later harvest. But the astral plane is, for the vast majority of the race, related to the purgative process. In that life the errors of the physical life are largely worked out and desires that have grown up like weeds in a garden are rooted out and the budding virtues are given a chance to grow. It is a corrective plane, where blunders are checked up and the moral perspective is re-established. Naturally enough the sooner that can be done the better. The rule of a long life being most desirable on the physical plane is, therefore, reversed on the astral plane. It is the shortest life in the astral world that is the greatest prize, and it comes to those who have lived the purest and noblest lives while here. The sooner a man gets through the astral world and begins the reaping of his harvest on the mental plane, or heaven world, the better it is for him. The length of the astral sojourn depends primarily upon the durability of the astral body and that, in turn, depends upon the kind of a life he has lived here. Let us suppose that he has lived a very gross and sensual life. All of the emotions of that type that he indulged built more gross matter in his astral body and also strengthened and vivified the lowest grade of matter that was already there. Let us also imagine that he had an ungovernable temper and frequently gave way to outbursts of fury; further, that he was cruel and revengeful, seeking and finding many opportunities of inflicting injuries upon others. Here we have a case for long life on the lower levels of the astral world.