An Idle Mind is Devil's Workshop

The human mind is always in the process of thinking. In the case of a busy person, these thoughts are positive and constructive. While in the case of a person who has nothing worthwhile to do, the mind thinks in the negative direction. All sorts of unhealthy thoughts occupy the idle mind and these may lead to harmful deeds. So an idle mind is called a devil's workshop. So more the people are kept occupied better it is for the society.