God's love is a vertical parental love and True Parents' love is a horizontal parental love. In a person who has inherited these loves, the mind is a traditional fruit which received the vertical God's love and parental love, and the body is a traditional fruit which received the horizontal True Parents' love.

These fruits become a horizontal foundation for the family, and when they form a spherical movement centered on the vertical center, they result in the husband and wife relationship and sons and daughters. Therefore, if you do not give birth to sons and daughters, it is sin. You should not become parents who do not have children. Is there any meat without bone? In that case, the position cannot be determined. (184-309)

Eve, centering on woman's nature, and Adam, centering on man's nature, are divided. Then, why do they become one again? Through becoming one after being separate, you realize how strong is the love which God himself is holding within. Otherwise, you do not understand. You have love within you, but you do not understand it. You understand it only through meeting your partner. You experience the love within you through other people.

God is a vertical parent, and Adam and Eve are parents centered on a horizontal true love. (185-187)

God is the bone of love. You must know this. Concerning love, God's love is the bone of love, and human love is the flesh of love. Do you understand? Through becoming one, the bone and the meat can form a certain shape. This is the Principle.

What love is God's love? (It is the bone of love.) Just as you have bones in yourself, God's love is the bone of love. What love is the True Parents' love? (It is the flesh of love.) Flesh of love! (181-187)