The Spirits' Book
Book Three - Moral Laws
Chapter VI - V. Law of Destruction
737. What is God’s purpose in inflicting destructive scourges upon humankind?
“To make human beings advance more quickly. As we have already stated, destruction is necessary for the moral regeneration of spirits, who move one step closer to perfection in each new existence. To appreciate the results, we must consider the purpose or the end. If you only judge them from your personal point of view, they appear to be plagues because of the harm they cause you. Such events are often needed to spur faster development and achieve in only a few years what would otherwise have taken centuries to accomplish.” (See Q744)