In order to describe the further course of the Sun evolution, reference must be made to a fact in the formation of worlds which is of the greatest possible significance. It is this,—that by no means every being attains the goal of its evolution in the course of one epoch; there are some that fall short of that goal. Thus, during the Saturn evolution, not all of the Sons of Personality actually reached the human stage for which, as described above, they were destined; and just as little did all the physical human bodies, developed on Saturn, attain the degree of maturity which qualifies them to become vehicles of an independent etheric body on the Sun. The consequence is that beings and organisms are present on the Sun which are not in harmony with their environment. These must now make up, during the Sun evolution, for what they failed to attain on Saturn. The following may, therefore, be clairvoyantly observed during the Sun period. When the Lords of Wisdom begin their pouring in of the etheric body, the Sun body is to some extent darkened. Structures are mingled with it which, properly speaking, belong to Saturn. They are heat organisms which are not able to condense themselves into air in the proper manner. These are the human beings left behind in the Saturn stage. They are not able to become vehicles of a normally developed etheric body. Now the heat substance of Saturn, which has thus been left behind, splits into two parts on the Sun. One part is absorbed, as it were, by human bodies, and henceforward forms a kind of lower nature within man’s being. Thus something, which really corresponds to the Saturn stage, is incorporated in the bodily part of man on the Sun. Now just as the Saturn body of man made it possible for the Sons of Personality to raise themselves to the human stage, the Saturn part of man performs the same office on the Sun for the Sons of Fire. They raise themselves to the human stage by letting their forces flow in and out of the Saturn part of man, as did the Sons of Personality on Saturn.