The Quran guarantees happiness to those who have faith in Allah and live by His teachings as it says: "Whoever works righteousness, man or woman, and has Faith, verily to him will We give a life that is good and pure, and We will bestow on such their reward according to the best of their actions." Happiness cannot be achieved without making enormous efforts to make positive change and adjustments in our lives. The Quran declares: "Verily never will Allah change the condition of a people until they change what is in themselves." The Quran insists that repentance followed by change has to be...