The answer is sexual attraction and desire. People are propelled through the subjectivity of the mind and the power of sexual attraction, even when it is not entirely complimentary.

The sad case is that people do not question these impulses and mistaken them for "true love." Complete compatibility cannot be entirely based on sexual attraction. However, this is generally the sole criteria for many bachelors searching for their mate. This occurs because the sexual force is so powerful and impels people to look for a sense of "completion" through the opposite sex.

Many ignore that human beings should only couple in accordance with the three levels of body, soul and spirit. People do not awaken consciousness; therefore, they do not know true love, the soul, and God. What commonly exists is sexual attraction in the emotional (Hod) or physical-chemical level (Yesod).

However, there must be marriage in the mind, soul and spirit as well. People mate due to Lucifer, the sexual impulse, since sex is fire and needs to act, whether through the perfect matrimony or as animals fulfilling desire.