There is one most important thing that can be learned from this process: every soul which is coming from the source towards manifestation gives what it brings from the source to the returning souls it meets, and these give back all they have collected. It is this exchange which is the cause of the various conditions of life into which man is born on coming to earth. One is intelligent, another is simple, one is born in a rich family, another in poor surroundings, one is healthy, the other weak, one will have a great purpose, the other does not know what he should do. It is all determined. By what? By the fact that a soul coming from the source has collected all kinds of things on its way from souls returning to the source.