the banner of hardships in the world and the reason of worldly punishment and afterlife punishment is infidelity. When people do not know Allah, it is harmful for themselves. The lord of the universe is the source of All goodness and benevolence and when the relationship of humans is cut with the source of benevolence and goodness, the evil will come to light, when there is no light, the darkness will appear; when there is no truth, the falsehood come into existence; when the human beings have no relationship with the source of the goodness who is the director of this universe, they forcibly have to start their relationship with the badness and evil.
source : erfan.ir
