The development of the vital force may be represented geometrically by a spindle, which swells out gradually to the middle, and decreases again to a point. When the soul reaches the middle of life, it does not become less, like a spindle, and dwindle down to the end, but follows its parabolic curve into the infinite. Moreover, the mode of existence of the soul is essentially different from that of the vital force. It lives in a spiritual way. The conceptions of the soul, such as the sentiments of justice or injustice, of truth or falsehood, of good and evil, as well as knowledge, mathematics, analysis, synthesis, contemplation, admiration, love, affection or hatred, esteem or contempt--in a word, the occupations of the soul, whatever they may be, are of an intellectual and moral order, which neither the atoms nor the physical forces can apprehend, and which have as real an existence as the physical order of things. The chemical or mechanical work of cerebral cells, however subtle they may be, can never produce an intellectual judgment, such, for instance, as the knowledge of the fact that four multiplied by four is equal to sixteen, or that the three angles of a triangle are equal to two right angles. [Sidenote: The soul survives the body.] These three elements of the human being are reproduced in the universe at large: 1. The atoms, the material world inert, passive; 2. The physical forces which regulate the world, and which are continually transformed into one another or into others; 3. God, the eternal and infinite spirit, the _intellectual_ organiser of the _mathematical_ laws which these forces obey, the unknown being in whom reside the supreme principles of truth, of beauty, of goodness. The soul can be attached to the body only by means of the vital force. When life is extinct the soul naturally separates from the organism and ceases to have any immediate connection with time and space. After death the soul remains in that part of the universe where the Earth happens to be at the moment of its separation from the body. You know that the Earth is a planet in the heavens like Venus and Jupiter. The Earth continues to run in its orbit at the rate of 12,700 kilometres an hour, so that the soul an hour after death is at that distance from its body because of its immobility in space, when no longer subject to the laws of matter. Thus we are in the heavens immediately after death, where, however, we have also been during the whole of our lives; but we then had weight which held us to the Earth. I must add, however, that as a rule the soul takes some time to disengage itself from the nervous organism, and that it occasionally remains many days, and even many months, magnetically connected with the old body, which it is reluctant to forsake. Moreover, it has special faculties by means of which it can transport itself from one point of space to another.