Every aspect of the life of an individual and of the life of the world has its cycle. In the life of an individual the period from his birth to his death is the first part, and from death to assimilation in the Infinite the second part. The sub-cycles in man's life are from infancy to youth, where one part ends and from youth to old age, which is the close. There are again under-cycles: infancy, childhood, youth, maturity, senility; and there are the cycles of man's rise and fall.