Aurelius, Marcus. Meditations. Mineola, NY: Dover Publications, 1997.
Dostoyevsky, Fyodor. Notes from Underground. New York: Vintage Classics, 1994.
Fowles, John. The French Lieutenant’s Woman. New York: Signet, 1970.
Hollis, James. The Middle Passage: From Misery to Meaning at Midlife. Toronto: Inner City Books, 1993.
———. Tracking the Gods: The Place of Myth in Modern Life. Toronto: Inner City Books, 1994.
———. Creating a Life: Finding Your Individual Path. Toronto: Inner City Books, 2001.
———. Finding Meaning in the Second Half of Life: How to Finally, Really Grow Up. New York: Gotham Books, 2005.
———. Why Good People Do Bad Things: Understanding Our Darker Selves. New York: Gotham Books, 2007.
———. What Matters Most: Living a More Considered Life. New York: Gotham Books, 2009.
———. Hauntings: Dispelling the Ghosts Who Run Our Lives. Asheville, NC: Chiron Books, 2014.
Hopkins, Gerard Manley. Poems and Prose. London: Penguin Books, 1985.
Jung, Carl. Collected Works. Twenty Volumes. Princeton, NJ: Princeton University Press, 1953–79.
———. Symbols of Transformation, Collected Works V. Princeton, NJ: Princeton University Press, 1956.
Lamott, Anne. Traveling Mercies: Some Thoughts on Faith. New York: Anchor Books, 2000.
Neumann, Erich. Depth Psychology and the New Ethic. Boulder, CO: Shambhala Press, 1990.
Rilke, Rainer Maria. Poems of Rilke. Translated by Stephen Mitchell. New York: Vintage, 1989.
Tillich, Paul. Systematic Theology. Chicago: University of Chicago Press, 1967.
———. The Courage to Be. New Haven, CT: Yale University Press, 2000.
Trungpa, Chögyam. Shambhala: The Sacred Path of the Warrior. Boulder, CO: Shambhala Publications, 1984.
Yeats, W. B. The Tower. New York: MacMillan Publishers, 1928.