=Masculine and feminine principal.=--The organic world is pregnant with two primary and vital principles, the masculine and the feminine. Every plant, lower animal, and man is reproduced by the union of these principles. In the lower forms of plant and animal life these two principles reside in the same organism. Reproduction takes place within the parent organism by the union of these two natures. The parent organism divides and becomes two distinct organisms. This is reproduction by division. =Reproduction in the lower forms of life.=--In the next higher forms of plant and animal life these two principles reside in the same individuals, but in separate organs. These organs possessing the female nature produce seeds or eggs. The organs possessing the male nature produce a fertilizing substance called pollen or semen. Reproduction takes place by the fusion of the male and female cells. In the higher animals and man these principles reside in separate individuals. In some mysterious way the procreative cells have residing within themselves, in rudimentary form, all the attributes of the parents. =Sex is in the life principle.=--Once sex was considered a part of the physical organism. Now we are beginning to see that sex is vitally and substantially related to life. When a little plant comes into the world it is because the masculine and feminine sex principles have united on the plane of physical life. Like begets like. The baby plant did not possess animal life, intellectual life, or moral life for the reason that the parent plant could not transmit a form of life it did not possess in its masculine and feminine nature. When the little animal comes into this world it is because the masculine and feminine principles have united on the plane of instinctive animal life and, among the higher classes of animals, rudimentary mental life. =Reproduction man.=--Man is organized on higher planes than the rest of the organic world. Man possesses not only the highest form of physical life, but also mental and spiritual life. Sex in man is primarily and substantially related to his physical, mental and spiritual life. The sperm cell of the father is formed from his blood and possesses the essence of his three-fold nature. The germ cell of the mother is formed from her blood and possesses the essence of her three-fold nature. When these two cells, masculine and feminine, unite under proper conditions, a human being having a physical, mental and moral nature, is started upon its endless voyage, nine months before it makes its visible appearance in the world. When God made the body of primitive man He “breathed into him the breath of life (Hebrew lives) and man became a living soul,” having power of self-propagation and the power to transmit potential procreative power from one generation to another.