الَّذِينَ آمَنُوا وَتَطْمَئِنُّ قُلُوبُهُم بِذِكْرِ اللَّهِ ۗ أَلَا بِذِكْرِ اللَّهِ تَطْمَئِنُّ الْقُلُوبُ

Man is bound to God by the bond of nature and to his fellow beings by the bond of humanity. Breaking both bonds leads to creating mischief on God’s earth. Living a peaceful life on God’s earth means making his life subject to the above-mentioned bonds. In liberating himself from these bonds – caring nothing for the rights of God or men—he only creates mischief. Those who act thus incur the curse of God. Such as these will not share in the Grace of God. They have fouled God’s earth, so they deserve to be pushed into the foulest of places—Hell. In this world one receives less and another receives more. The one who receives more develops a superiority complex, while the one who receives less suffers from an inferiority complex. But, in the eyes of God, neither attitude is correct. The correct reaction is that if one receives more, he should become grateful to God; one who receives less, should strive to remain patient and be contented with what he has. Worldly-oriented people invariably ignore the preacher of Truth. The reason for this is that a worldly person recognizes only worldly glories. As the preacher is in possession of only sublime truths, he is not recognized and is ignored as an unimportant person. But, when the veil over reality is torn asunder, man will come to know at that time that the apparent glory which he considered everything, was absolutely valueless. The truly valuable thing was reality which, because it was unseen, could not claim his attention.

— Source: Tazkirul Quran (Maulana Wahiduddin Khan) via Quran.com (13:28)