For example a young man, Otto Weininger, wrote a book entitled Sex and Character. Otto Weininger was a man with great potential which, however, he was unable to develop because the full weight of materialism rested heavily on his soul. He was of the opinion that the individual human being can be seen neither as entirely masculine nor feminine but rather that the masculine is mixed together with the feminine and vice versa. This embryo of an idea dawned in the soul of Weininger but was stultified by the prevailing materialism. Thus Weininger imagined there to be a mixing and material interaction of the masculine and feminine principles such that in every man a hidden woman and in every woman a hidden man is to be found. But out of this, some strange conclusions came to him. Weininger said for example that the woman possesses no ego, individuality, character, or personality, no freedom and so on. As his theory was concerned only with a purely material, quantitative mixing of male and female properties, it followed that the man possesses all of these things. These, however came to nothing in him because of his other male qualities. Thus if we enter into this logically we soon discover a theory which destroys itself. Yet as we shall see, there is some truth in it.

Da li to znači da spol nema značenja u duhovnom svijetu? Da li polaritet fizičkog i eteričkog tijela koji čine da se ovdje na zemlji ispoljavaju dva spola, nemaju odjeka u višim svjetovima? Zasigurno ne nosimo našu seksualnu prirodu sa nama u više svjetove; međutim, ishodište dva spola može se naći u astralnoj sferi.

Duhovna znanost čini mogućim da kada se dvije duše susretnu i jedna zahtijeva ljubav, druga je nudi.