This application is light and gentle, in which Dr. Ayedh bin Abdullah Al-Qarni summarized the books and published compilations in it, and called it: [So that you may be the happiest of people] and made it into rules that you may repeat and ask yourself to implement and act upon.
The application also includes an audio lecture about the book Do not be sad, with the voice of Sheikh Ayed Al-Qarni, in which he summarizes the most prominent of what came in his book Do not be sad,