Based on Bhagavad Gita Chapter 16, Text 21
Some exclusivist religions claim that those who don’t accept their dogmatic beliefs will be sent by God to hell forever. In refreshing contrast to such narrow-minded uncouth conceptions, Gita wisdom presents a broad-minded, refined understanding of the universe as a university with Krishna as a constant benevolent guide. Those who learn the art of eternal spiritual happiness graduate from the university and regain everlasting joy in Krishna’s personal abode.
Unfortunately, some people adamantly refuse to learn this lesson. Instead, as the Bhagavad-gita (16.21) indicates, they imagine that unrestricted indulgence in lust, anger and greed are gateways to pleasure. Such perverse fantasies make them mentally deranged, thereby alienating them from their right to inner spiritual happiness and sentencing them to repeated misery in material existence. To shorten their suffering and to accelerate their learning, nature sends them to a severe transitional classroom named hell. This classroom makes apparent the miserable nature of material existence and the terrible consequence of wanton indulgence — twin lessons that they couldn’t grasp in more congenial classrooms.