If we wish to draw an approximately true picture of the conditions prevailing during the Saturn evolution, we must take into account the fact that while it lasted, there were virtually, as yet, none of the things and creatures existing which now belong to the earth and are included in the mineral, vegetable, and animal kingdoms. The beings of these three kingdoms were formed during later periods of evolution. Of all the earthly beings physically perceptible today, man alone existed at that time and of him only the physical body existed as described. But there are at present belonging to the earth not only the denizens of the mineral, vegetable, animal and human kingdoms, but other beings as well, not manifesting in a physical embodiment. Such entities were also present during the Saturn evolution, and their activity on the Saturn scene of action brought about the subsequent evolution of man. If the organs of spiritual perception are directed, not to the beginning and end, but to the middle period of evolution of this Saturn incarnation, we find there a condition which consists principally of heat. Nothing is to be found composed of gaseous, fluid, or even solid constituents. All these states appear only in later incarnations. Let us assume that a human being, with the present organs of sense, were to approach the Saturn condition as a spectator. None of the sense-impressions possible to him would confront him there except the feeling of warmth, or heat. Suppose such a being approached this Saturn; he would only sense, upon entering the space occupied by it, that it was in a different degree of heat from the rest of surrounding space. But he would not find that portion of space by any means equally warm throughout, for warmer and colder parts would alternate in the most complicated manner. Radiating heat would be felt along certain lines. And not only straight lines, but regular figures would be formed by the variation in heat. Something like a cosmic being, organically constructed in itself would be discerned, appearing in changing conditions, and consisting only of heat. It is difficult for a man of the present day to form an idea of anything consisting only of heat, for he is not accustomed to think of heat as something self-existent, but as a perceptible quality of warm or cold gaseous, liquid, or solid bodies. To one who has adopted the physical conceptions of our time it will seem particularly absurd to speak of heat in the foregoing manner. He will, perhaps, say: “There are solid, liquid, and gaseous bodies; but heat only denotes a condition assumed by one of these three bodily forms. If the smallest particles of gas are in motion, the movement will be felt by heat. Where there is no gas, there can be no movement, consequently no heat.”