March 2, 1917
As to the question concerning the soul, know thou, verily, that "soul" is a term applied to numerous realities, according to the exigencies of the following relations in regard to development in the world of existence:
(1) In the mineral kingdom, soul is called "latent force," silently working for the disintegration of the substance of the mineral.
(2) In the vegetable kingdom it is called “virtue augmentative," or the power of growth, which attracts and absorbs the delicate materials of inorganic substance found in the mineral kingdom of matter, and transforms them into the condition of growth. Thus the inorganic substance found in the mineral kingdom becomes growing vegetable life through the effect of the word of God. This vegetable soul, i. e. "virtue augmentative," or power of growth, is a quality which is produced by the admixture of elements, and appears in accidental organisms, of which contingency is an essential attribute.
(3) In the animal kingdom it is called "sense perceptions" (or instinct). This soul term, as applied to the animal kingdom, is also a natural quality resulting from the mixture of the elements, and it appears from their mingling and combination, for it is a quality which results from the composition of bodies (organisms) and is dispersed at their decomposition. From this we are to understand that the animal soul is not endowed with the capacity of attaining immortality, as the life force is dispersed at the decomposition of the animal tissues.