Amid modernization, most people need happiness. However, it accidentally brings them out to ecstasy. Plenty of ways are done to achieve its happiness. Unfortunately, some people are disappointed because they are unable to obtain it. When they don't succeed, their souls become unstable. This study examines the psychological problems of modern society with all its issues. Since it used the method of literature, the researchers drew two conclusions. First, most people experience a psychological crisis. It implies that they are less aware of the origins of their creation. Second, Islam offers a solution to overcome it by giving a thankful mindset and a way to purify one's soul (Tazkiyatun Nafs). People who have a thankful heart are happier, healthier, and in a better mood. People who regularly do Tazkiyatun Nafs (soul-cleansing) can keep their bad temper under control.