Harris, Sam. 2014. Waking up: A guide to spirituality without religion. Simon and Schuster.
Hay, David. 1979. Religious experience amongst a Group of post-graduate students: A Qualitative study. Journal for the Scientific Study of Religion, 18
(2): 164-182. https://doi.org/10.2307/1385938
Hoseini, M., & P. Javadi Torshizi. 2010. Archetypes in Sohrevardī’s Ghessat al-Ghorbat al-Gharbiya. Mystical Literature, 2(2): 49-72. doi: 10.22051/jml.2014.113 (in Persian)
Ibn Sīnā, H̱ossein. 1985. Al-najāh min al-gharq fī baẖr al-dalālāt, edited and prefaced by Mohammad Taghi Danesh Pajoh. Tehran: Tehran University Press. (In Arabic)
Izadpanah, A., & A. Shakernejad. 2014. The necessity of a civilizational perspective on the notion of spirituality. Naqd Va Nazar, 19(75): 123-153. (In Persian)
Mokhles, Saham, Reza Akbari, Rasoul Sharabini, & Gita Moghimi. 2016. Risalat al-Tayr: The symbolic metanarrative of the meaning of life. Avecinnian Philosophy Journal, 20(56): 103-118. doi: 10.30497/ap.2016.61502 (In Persian)
Mullā Ṣadrā. 1976. Al-mabdaʾ wa al-maʿād, edited by Seyed Jalal al-Din Ashttiyani, Tehran. (In Arabic)
Mullā Ṣadrā. 1981. Al-ḥikma al-mutaʿālīya fi al-asfār al-ʿaqlīyya al-ʾarbaʿah, 3rd ed. Beirut. (In Arabic)
Mullā Ṣadrā. 1984. Mafātiḥ al-ghayb, edited by M. Khajavi. Tehran: Cultural Research Institute. (In Arabic)
Nelson, James M. 2009. Psychology, religion, and spirituality. Springer.
Nikouei, A., & S. Babashakouri. 2014. Re-reading of children's tales based on schema component in cognitive theory. Iranian Children's Literature Studies, 4(2): 149-174. doi: 10.22099/jcls.2014.1145
Peterson, Mark, & Dave Webb. 2006. Religion and spirituality in quality of life studies. Applied Research in Quality of Life, 1(1): 107-116. https://doi.org/10.1007/s11482-006-9006-y.
Ray, P. H., & S. R. Anderson. 2001. The cultural creatives: How 50 million people are changing the world. Three Rivers Press.
Sheldrake, Philip. 2013. Spirituality: A brief history, 2nd ed. John Wiley & Sons.
Sheldrake, Philip. 2014. The spiritual city: Theology, spirituality, and the urban. Wiley Blackwell.
Soltanian, K., R. Akbari, M. H. Mahdavinejad, & A. Parsa. 2017. Fakhr Razi's approach to the semantic analysis of “knowledge” and related words in religious text. Philosophy of Religion, 14(1): 1-20. doi: 10.22059/jpht.2017.62416 (In Persian)
Suhrawardī', Shihāb ad-Dīn Yahyā. 1998. Ḥikmah al-Ishrāq, in Collected Works of Sheikh Ishraq, vol. 2, edited and introduced by Henry Corbin. Tehran: Publications of the Institute of Humanities and Cultural Studies (In Arabic)
Thobūt, Akbar. 2003. Tafsīr-e Mullā Ṣadrā (Mullā Ṣadrā’s Quranic Interpretation). Pp. 717-720, in Great Islamic Encyclopedia, vol. 7. Tehran: The Centre for the Great Islamic Encyclopedia. (In Persian)
Viglas, Katelis. 2005. Mysticism and rational spirituality—When theology meets philosophy in Byzantium. European Journal of Science and Theology, 1: 5-9.
Westera, Doreen A. 2016. Spirituality in nursing practice. Springer.
Wright, Andrew. 2000. Spirituality and education. Routledge.