The energy which moves atoms and governs the universe is indestructible. The human soul is indestructible. XI. The individuality of the soul is recent in the Earth's history. Our planet was nebula, then sun, after that, chaos. No terrestrial human being was then in existence. Life began with the most rudimentary organisms; it has progressed century by century to attain its present state, which is not the last. What we call the faculties of the soul,--intelligence, reason, conscience,--are modern. The mind has gradually freed itself from matter; as--if the comparison were not awkward--gas frees itself from coal, perfume from the flower, flame from fire. XII. Psychic force has been beginning to assert itself in the higher spheres of terrestrial humanity for the past thirty or forty centuries; its action is but in its dawn. Souls conscious of their individuality, or still unconscious of it, are by their very nature beyond the conditions of space and time. After the death of the body, as during life, they occupy no place; perhaps some of them go to dwell in other worlds. Those only who are freed from material bonds can be conscious of their extra-corporeal existence and immortality. XIII. The Earth is but a province of the eternal fatherland; it forms a part of heaven. _Heaven is infinite_; all worlds are a part of heaven. XIV. The planetary and sidereal systems which constitute the universe are at different degrees of organization and advancement. The extent of their diversity is infinite; beings are everywhere appropriate to their worlds. XV. All worlds are not lived upon. The present era is of no more importance than are those which preceded or those which will follow it. Some worlds have been inhabited in the past, others will be in the future. Some day nothing will remain of the Earth; even its ruins will have perished. XVI. Terrestrial life is not the type of other lives. An unlimited diversity reigns in the universe. There are dwelling-places where the weight is intense, where light is unknown, where touch, smell, and hearing are the only senses, where, the optic nerve not being formed, all the beings are blind. There are others where the beings are so light and so slight that they would be invisible to earthly eyes, where senses of an exquisite delicacy reveal to privileged beings sensations forbidden to terrestrial humanity. XVII. The space existing between the worlds distributed over the immense universe does not separate them from each other. They are all in perpetual communication, from the attraction which makes itself felt through all distance, and establishes an indissoluble link between all worlds. XVIII. The universe forms a single unity. XIX.