A common field of study between religious studies and medical science and psychology is investigating and using religious practices to achieve mental peace and promote public health in society. Over the past decades, there has been an increase in studies in medical science investigating how Muslim religious practices promote peace and health. Islam views prayer as one of the most important acts of worship, and Muslims are required to perform it five times a day. Prayer is emphasized in the Qur'an to be performed accurately and completely more than other forms of worship, and it is strictly prohibited not to be negligent or abandon it. Hadiths and verses in Islamic sources emphasize prayer's educational, psychological, and health benefits. In this study, a descriptive-analytical method and a content analysis were used to examine the effect of prayer on increasing mental health, as viewed from the perspective of the Qur'an. Several significant health effects of prayer are associated with mental health, including: creating mental peace and security, increasing patience when faced with challenges, preventing fear and sadness, mental coherence, planning power, sense of worth and social identity.
