Bianchi, E. (1982). Aging as a spiritual journey. New York: Crossroad.
Guigon, C. (2000). Authenticity and integrity: A Heideggerian perspective. In P.
Young-Eisendrath & M.E. Miller (Eds.), The psychology of mature spirituality (pp.
62-74). London: Routledge
Moody, H. R. (1995). Mysticism. In M. A. Kimble, S.H. McFadden, J. W. Ellor,&J. J.
Seeber (Eds.), Aging, spirituality, and religion (pp. 87-101). Minneapolis, MN:
Wink, P., & Dillon, M. (2002). Spiritual development across the adult life course:
Findings from a longitudinal study. Journal of Adult Development, 9(1), 79-94.
Guigon, 2000; Moody, 1995; Wink&Dillon, 2002
concluded that regardless of racial, cultural, religious variations,
mounting empirical evidence in the past half century pointed to the incremental
pattern of spiritual experiences with age.
Moberg, D. O. (2001a). Research on spirituality. In D. O. Moberg (Ed.), Aging and
spirituality (pp. 55-67). New York: Haworth Pastoral Press.
Elkins, Hedstrom, Hughes, Leaf, and Saunders (1988) approached spirituality from a nonreligious, phenomenological perspective by examining such classic psychological literature produced by authors such as Maslow, Fromm, and Frankl.
Elkins, D. N., Hedstrom, L. J., Hughes, L. L., Leaf, J. A., & Saunders, C. (1988).
Phenomenological spirituality. Journal of Humanistic Psychology, 28(4), 5-18.
Chinen, A. B. (1986). Elder tales revisited: Forms of transcendence in later life. The
Journal of Transpersonal Psychology, 18(2), 171-192.