People who forget Allah and the Hereafter, seeking happiness solely in the life of this world, are brought to a dead end and are unable to find true happiness. True happiness can be found through faith in Allah and striving for a life in the Hereafter. People naturally strive for happiness and comfort, but often the things they pursue--material wealth, admiration, and 'fringe' living--ultimately do not bring true satisfaction. Allah warns that such desires can lead to unhappiness and humiliation, while those who follow His guidance can find true peace and joy. True happiness comes from submitting to Allah and living a life in accordance with His commands. People who do not do this will not experience true happiness, and will instead find themselves constantly frustrated.
The Prophet has taught us that gains in this world are only temporary, and the true gain comes from focusing on the Hereafter. We must be aware of our deeds and have fear in Allah, for we will meet Him one day. The audiobook will explain the source of true happiness and how it can be achieved by following the teachings of the Qur'an.