You may not know much about the reality of the spiritual world, but, with God's special grace, I know the "unknown" world more than anyone else.

Digging into the root of that world, we find its structural principle to be quite simple. You must understand that Heaven is a place where only those who lived for the sake of others go. This is because unselfish love is the principle of heaven and earth, the root of the ideal that God created.

The ideal world of the Kingdom of Heaven is structured with this kind of content. This is a plain fact.

The heavenly world is the original homeland to which we are to go. Today, we are exiles from our original homeland and live a fallen life. But our fate is to return there. We cannot, however, enter there by ourselves, so God has to set up a path in the course of history so people can go in. This is why God created so many different religions: to be training grounds to make a path for every people, culture, custom, and tradition. Religions polish people to be qualified to enter the region of the original homeland. Because of humankind's many different cultural backgrounds, God sought and set the standard of comparison and has been leading the way toward one unified religious world.

What does religion, which guides man to the original homeland, teach? It promotes the path of living for the sake of others. The higher the religion, the more strongly it emphasizes the importance of living for others. Therefore, we must be gentle and meek. Why? We must strive to stand in a position to lift up many people and live for their sake. Religion teaches us to sacrifice and serve. Why? Because religions must train people to fit the rules of the Kingdom of Heaven. (78:117)