There are always in this world certain specific people of God who are brimful of blessings deriving from the observation of the unseen world. When these specific people analyze the majority of people in world, they feel sorrow. For the majority of people think the few days of life in this world are the real life. These specific people see quickly the reasons why others think mistakenly, and they teach that selflessness is superior to ego and death triumphs over this brief life. But this secret is not apparent to the dwellers of this world that the real life starts after death. Because of this ignorance of the secret, humans persist in their interest in this world. On the other hand, once the reality of the inconstancy of the world is revealed to them, then their hearts will become averse to the temporary life of this world.