The sinful world started from an individual and then expanded to the family, clan, tribe, nation and world. In order to make His foundation, God also must expand the sovereignty, starting with the realm of the archangel, the realm of servant. From there, He must expand it to the realm of adopted son and then to the realm of direct child. Even in the realm of the direct children, there are Cain and Abel. Cain and Abel were born from fallen parents, and they fought and separated. Without making the condition of Cain and Abel having become one, you cannot go beyond the fallen sovereignty. The realm of the Fall can be overcome by forming the foundation of substance. By doing that, you meet the criterion for the completion level, but the original sin of blood lineage inherited from Satan is still not eliminated. For the elimination of the original sin, the Messiah is absolutely needed. Therefore, the foundation of faith, foundation of substance and foundation for the Messiah are absolutely necessary for fallen men and women. The ultimate challenge is to establish the foundation for the Messiah and receive him and change your blood lineage. By doing so, you should be in the position of his children.

Without restoring the relationship of Cain and Abel, you cannot receive the Blessing. In order to return to parents, Cain and Abel must be united. Without that, you cannot go back to the parents. Restoration is like that. In Adam's family, Cain and Abel should unite and carry out the restoration; this is the Principle.

In our Unification Principle, what do we want to establish centering on the foundation of faith and the foundation of substance? Since right before the Fall was the engagement period, we must be restored to the position of Adam and Eve before the Fall. Then, what must be done in order to be restored to this position of the engagement period before the fall? Adam and Eve fell with false love and became the false parents. Centering on these false parents, there were three sons, Cain, Abel and Seth. Including their wives there were eight people in the fallen positions. The internal and external content of the foundations of faith and substance is needed in order to restore these eight positions of the family. After they have been restored, then attend the Parents and overcome whatever blocks your way. Here, the heavenly parent is the Messiah. Therefore, after accomplishing the foundation of substance, the foundation for the Messiah must be established in front of the fallen people. Without the Messiah, we cannot go back to the original position. The descendants of fallen Adam and Eve, all people without exception, cannot have the original sin liquidated without receiving the Messiah.

The ancestors of humankind, Adam and Eve, fell with the wrong kind of love, centering on themselves. Through love centering on themselves, the Archangel entered. Through the Fall, they chased God out, chased out the original true character of Adam and brought the result of chasing out the original true character of Eve. In this way, in establishing the love relationship not permitted by God, what happened to humankind was that the original sin came to exist. Therefore the problem for humanity is how to wash out this original sin. However, we were born from fallen parents, therefore without connecting to the love of the True Parents, the original sin cannot be eliminated. Because the original sin was planted by false parents, the denial of this love cannot happen without the formation of love by the True Parents.

People with original sin cannot go to the Blessing, because even though they try to be God-centered, the content of Satan's blood lineage is in their own selves. Thus, the Blessing position is not possible. Therefore, the original sin must be eliminated. Because this original sin is connected to the false parents, in order to eliminate it we must center on the True Parents. Without centering on the True Parents and establishing the required indemnity condition, there is no way to eliminate it. Without eliminating the original sin, there cannot be the completed husband and wife position with the Blessing centering on God's love. Because you were born originating from love, you must be one body with the True Parents. Without that, you cannot receive the grace of resurrection. After passing through this, fulfill the heavenly laws and get the qualification as unfallen Adam and Eve in the completion level. After that, you are recognized by God. Thus, through being "good" you can receive the Blessing. That is why these three stages or courses must be accomplished.