Carelessness is a terrible scourge and a disease that corrupts the religiosity and the life of the person. The Muslim must constantly remember his Lord. There are several ways to achieve this, such as dhikr, the recitation of the Koran, the reminder of death... Life is fleeting, the world is doomed to disappear, so why worry about what is fleeting at the expense of what is eternal. This is what this epistle will seek to develop in order to awaken consciences and allow everyone to join the circle of those who remember Allah permanently, not those who live in the most total recklessness.