II
There is another word of which it is equally necessary to define the meaning, because it is the keystone of every system of morality, and also because, owing to the lack of a precise definition, it has been made the subject of innumerable controversies; we refer to the word soul. The divergence of opinion concerning the nature of the soul is a result of the variety of meanings attached to this word. A perfect language, in which every idea had its own special term, would save a vast deal of discussion; for, in that case, misunderstanding would be impossible.
Some writers define the soul as being the principle of organic life, having no existence of its own, and ceasing with the life of the body. According to this purely Materialistic belief, the soul is an effect, and not a cause.
Others consider the soul as being the principle of intelligence, the universal agent, of which each being absorbs a portion. According to them, there is, in the entire universe, only one soul, which distributes sparks of itself among all intelligent beings during their life; each spark, after the death of the being it has animated, returning to the common source, and blending again with the general whole, as brooks and rivers return to the ocean from which they were produced. This opinion differs from the preceding one, inasmuch as, according to the latter hypothesis, there is in us something more than matter, something that remains in existence after our death; but, practically, it is much as though nothing remained of us, since, no longer possessing individuality, we should retain no consciousness of our identity. According to this hypothesis, the universal soul is God, and each being is a portion of the Divinity. It is a species of Pantheism.
According to others, again, the soul is a moral being, distinct, independent of matter, and preserving its individuality after death. This acceptation of the word soul is certainly the one most generally received; because, under one name or another, the idea of a being that survives the body is found as an instinctive belief, and independently of all teaching, among all nations, whatever their degree of civilisation. This doctrine, according to which the soul is a cause, and not an effect, is that of the spiritualists.
Without discussing the value of these opinions, and considering the subject merely under its philological aspect, we say that these three applications of the word soul constitute three distinct ideas, each of which demands a different term. "Soul" has, therefore, a triple meaning, and is employed by each school according to the special meaning it attributes to that word. In order to avoid the confusion naturally resulting from the use of the same word to express three different ideas, it would he necessary to confine the word to one of these three ideas; it would not matter to which, provided the choice were clearly understood. We think it more natural to take it in its most common acceptation; and for this reason we employ the word SOUL to indicate the immaterial and individual being which resides in us, and survives the body. Even if this being did not really exist, and were only a product of the imagination, a specific term would still be needed to designate it.
For want of such a term for each of the other ideas now loosely understood by the word soul, we employ the term vital principle to designate the material and organic life which, whatever may be its source, is common to all living creatures, from the plant to man. As life can exist without the thinking faculty, the vital principle is something distinct from and independent of it.
The word vitality would not express the same idea. According to some, the vital principle is a property of matter; an effect produced wherever matter is found under certain given conditions; while, in the opinion of the greater number of thinkers, it resides in a special fluid, universally diffused, and of which each being absorbs and assimilates a portion during life, as inert bodies absorb light; the vital principle being identical with the vital fluid, which is generally regarded as being the same as the animalised electric fluid, designated also as the magnetic fluid, the nervous fluid, etc.
However this may be, one fact is certain, for it is proved by observation, viz., that organic beings possess in themselves a force which, so long as it exists, produces the phenomena of life; that physical life is common to all organic beings, and is independent of intelligence and thought; that intelligence and thought are faculties peculiar to certain organic species; and, lastly, that, among the organic species endowed with intelligence and thought, there is one which is endowed with a special moral sense that gives it an incontestable superiority over the others, viz., the human species.
It is evident that, being employed according to various acceptations, the term soul does not exclude either Materialism or Pantheism. Spiritualists themselves understand the term soul according to one or other of the first two definitions, without denying the distinct immaterial being, to which, in that case it would give some other name. This word, therefore, is not there representative of an opinion; it is a Protean term, defined by each after his own fashion, and thus giving rise to interminable disputes.
We might also avoid confusion, even while employing the word soul in the three senses defined above, by adding to it some qualifying term that should specify the point of view from which we consider it, or the mode in which we apply it. It would be, in that case, a generic word, representing at once the principles of material life, of intelligence, and of the moral faculty, each of which would be distinguished by an attribute, as is done, for example, with the word gas, by adding the words hydrogen, oxygen, etc. Thus we might say – and it would, perhaps, be the best plan to adopt – vital soul for the principle of material life, intellectual soul for the principle of intelligence, and spiritual soul for the principle of our individuality after death; in which case the vital soul would be common to all organic beings, plants, animals, and men; the intellectual soul would be the peculiar property of animals and men; and the spiritual soul would belong to men only.
We have thought it all the more important to be explicit in regard to this point, because the spiritist theory is naturally based on the existence in us of a being independent of matter, and that survives the body. As the word soul will frequently recur in the course of this work, it was necessary to define the meaning we attach to it, in order to avoid all misunderstanding.
We now come to the principal object of this preliminary explanation.