<![CDATA[Overcrowding and the loss of liberty make prisoners vulnerable to psychological distress, while mental health services in correctional institutions remain limited. This study aims to analyze the role of Islamic spiritual guidance in developing the mental health of prisoners and the supporting factors involved at Class IIB Muara Bulian Correctional Institution. The study employed a qualitative approach with a case study method. Data were collected through in-depth interviews with five prisoners, two correctional officers, and the Head of the Registration and Community Guidance Subsection, as well as through observation and documentation, and were analyzed using the interactive model of Miles, Huberman, and Saldaña with religious coping theory as the analytical framework. The findings show that Islamic spiritual guidance, delivered through religious lectures, congregational prayers, Qur’an learning, and short sermons, contributes to the development of prisoners’ mental health through positive religious coping mechanisms, namely reframing imprisonment as an opportunity for self-improvement, seeking calmness through worship, seeking forgiveness and repentance, and strengthening patience and anger control. This role is reflected in more stable emotions, better adaptation, improved social relationships, and growing hope for life after release. The supporting factors include internal motivation and constructive remorse, the relevance of the material, support from officers, support from fellow inmates and the mosque community, family support, and routine activities. This study proposes the SAKINAH Program, which integrates spiritual guidance with early mental health screening, peer support, and family involvement.]]>
