Second Proof: It is only through the life of the hereafter that the elderly, who form half of mankind, can endure the proximity of the grave, and be consoled at the thought that their lives, to which they are firmly attached, will soon be extinguished and their fine worlds come to an end. It is only at the hope of eternal life that they can respond to the grievous despair they feel in their emotional child-like spirits at the thought of death. Those worthy, anxious fathers and mothers, so deserving of compassion and in need of tranquillity and peace of mind, will otherwise feel a terrible spiritual turmoil and distress in their hearts, and this world will become a dark prison for them, and life even, grievous torment.
Third Proof: It is only the thought of Hell-fire that checks the turbulent emotions of youths, the most vigorous element in the life of society, and their violent excesses, restraining them from aggression, oppression, and destruction, and ensuring that the life of society continues tranquilly. If not for fear of Hell, in accordance with the rule 'might is right,' in pursuing their desires, those drunken youths would turn the worlds of the wretched weak and powerless into Hell, and elevated humanity into base animality.
Fourth Proof: The most comprehensive centre of man's worldly life, and its mainspring, and a paradise, refuge, and fortress of worldly happiness, is the life of the family. Everyone's home is a small world for him. And the life and happiness of his home and family are possible through genuine, earnest, and loyal respect and true, tender, and self-sacrificing compassion. This true respect and genuine kindness may be achieved with the idea of the members of the family having an everlasting companionship and friendship and togetherness, and their parental, filial, brotherly, and friendly relations continuing for all eternity in a limitless life, and their believing this. One says, for example: "My wife will be my constant companion in an everlasting world and eternal life. It does not matter if she is now old and ugly, for she will have an immortal beauty." He will tell himself that he will be as kind and devoted as he can for the sake of that permanent companionship, and treat his elderly wife lovingly and kindly as though she were a beautiful houri. A companionship that was to end in eternal separation after an hour or two of brief, apparent friendship would otherwise afford only superficial, temporary, feigned, animal-like feelings, and false compassion and artificial respect. As with animals, self-interest and other overpowering emotions would prevail over the respect and compassion, transforming that worldly paradise into Hell.