Spiritual intelligence: a scoping review on the gateway to mental health

Spiritual Intelligence (SI) is an independent concept from spirituality, a unifying and integrative intelligence that can be trained and developed, allowing people to make use of spirituality to enhance daily interaction and problem solving in a sort of spirituality into action. To comprehensively map and analyze current knowledge on SI and understand its impact on mental health and human interactions, we conducted a scoping review following the Joanna Briggs Institute methodology, searching for 'spiritual intelligence' across PubMedCentral, Scopus, WebOfScience, and PsycInfo. Quantitative studies using validated SI instruments and reproducible methodologies, published up to 1 January 2022, were included. Selected references were independently assessed by two reviewers, with any disagreements resolved by a third reviewer. Data were extracted using a data extraction tool previously developed and piloted. From this search, a total of 69 manuscripts from 67 studies were included. Most studies (n = 48) were conducted in educational (n = 29) and healthcare (n = 19) settings, with the Spiritual Intelligence Self Report Inventory (SISRI-24) emerging as the predominant instrument for assessing SI (n = 39). Analysis revealed several notable correlations with SI: resilience (n = 7), general, mental, and spiritual health (n = 6), emotional intelligence (n = 5), and favorable social behaviors and communication strategies (n = 5). Conversely, negative correlations were observed with burnout and stress (n = 5), as well as depression and anxiety (n = 5). These findings prompt a discussion regarding the integration of the SI concept into a revised definition of health by the World Health Organization and underscore the significance of SI training as a preventative health measure. Main findings: This scoping review of Spiritual Intelligence found positive correlations with resilience, general, mental and spiritual health, emotional intelligence, and favourable social behaviours and communication strategies, and negative correlations with burnout, stress, depression, and anxiety.Added knowledge: Spiritual Intelligence is an all-inclusive way to approach spirituality from a practical, daily problem-solving perspective that can be trained with several benefits for personal overall health, while also fostering substantial personal growth in social behaviors and skills.Global health impact for policy and action: Spiritual Intelligence training is urgently needed and should be integrated into global educational programs from early childhood as a health promotion strategy aiming to foster a more resilient and compassionate society.