I heard echoes of Aristotle and Plato in the writings of our saints. I would murmur the names of the Socratic dialogues to myself when I met traces of them in our spiritual literature. As a contemplative nun, I've learned to rejoice that fulfillment is available to all human beings. Carmelites speak out of a spiritual tradition that shares its riches. And longed for everyone else, too.
Spiritual systems explain by metaphor the way to ultimate fulfillment.
Images of travel are often used. Along the the route are well-defined stages that mark advances toward our destination. Experienced guides direct our perceptions toward what is valuable in each day's hours, rather than what is merely a diversion of energy to insignificant pursuits. A spiritual quest requires letting go of baggage that impedes progress. Discipline is demanding, but also nourishing.