Often, we hear the word mystic, and think of such words as rapture, ecstasy, visionary, and so on. On one hand, rightfully so, the likes of Saint Padre Pio and Saint John Bosco, to name a few, are known for their “mystical” experiences of bi-location and the like. But there is a broader sense of this word that applies universally — that sense of encountering the divine via contemplation and the sacramental life.
What is contemplation? Contemplative prayer is “taking time to be alone with him who we know loves us” (Saint Teresa of Avila); “the intense gaze of faith, fixed on Jesus” (Catechism of the Catholic Church [CCC], 2715). The word contemplation is derived from the Latin contemplatio, which translates as “the act of looking at.” “‘I look at him and he looks at me’: this is what a certain peasant of Ars in the time of the holy curé [St. John Vianney] used to say while praying before the tabernacle” (CCC, 2715). Interestingly, the Latin root to the word contemplation is templum, which translates as “sacred.” Pulling this together, we could say that contemplation is the act of looking at that which is most sacred, the holy face of Jesus; the space where intimacy is shared between two friends. Indeed, the call of the mystic is a call to contemplation!
Now, what about the sacramental life and its relationship to the way of the mystic? The Catechism states. “Spiritual progress tends towards ever more intimate union with Christ. This union is called ‘mystical’ because it participates in the mystery of Christ through the sacraments – ‘the holy mysteries’ – and, in him, in the mystery of the Holy Trinity…” (CCC, 2014). The mystical life is not some experience of God that makes us “feel good”, but an encounter with God Himself. “God unites himself with us directly” according to Louis Bouyer’s Dictionary of Theology. (Incidentally, Saint Teresa of Calcutta was said to have mystical experiences of God, in its stricter sense of experiencing visions of Christ, and she, now famously, wrote of great length about “not feeling the presence of Jesus”). Essentially, the sacraments are about receiving the very identity of God in the Holy Spirit. Once we abide in the sacramental life and encounter Christ, actually being brought into union with Christ, we progress towards becoming the mystic God calls us to be. Again, a mystic is one who has been called by God; one who both contemplates and shares in ‘the holy mysteries’ of Christ.
In this vein, we should understand the Church as more than “an assembly of believers”, “house of God”, or “Body of Christ,” because the Church is the Mystical Body of Christ. We are not baptized into something in the abstract, but into Someone who is real and living – Christ, and his mystical Body. Therefore, by our very participation in Christ, we become mystics!
That being said, I would suggest the Holy Spirit has been preparing the Church for a renewal in this area of becoming a mystic. What do I mean? The Catholic Church has declared thirty-six saints as Doctors of the Church. In other words, thirty-six men and women have been set apart for their sublime explication of the Deposit of Faith and the Church’s doctrine. What is interesting about this number is what you find in the last six declared Doctors of the Church.
In summary, you can claim the last six Doctors of the Church as mystics, mystics in the broader contemplative and sacramental sense, since all six have contributed insight into the way of contemplation and sacramental union with the Holy Trinity. This contemplative encounter is what enables us to “be the praise of His glory” (Saint Elizabeth of the Trinity) in all that we do and say. We are all called to this way of life!
This individual call to be a mystic should not surprise us. We are wired for God, and as such, wired for mystery. For example, if you are anything like my family, you enjoy the clever analyzing of clues to uncover mystery. Whether it is the latest Masterpiece Mystery Theatre, or a simple crossword puzzle, there is something attractive to come to know what was once unknown. At every turn, both on a personal and communal level, mystery captivates us! We see this reflected in our Christ haunted culture that is fascinated by mystery. Just this past year, the budgets for both NASA (The National Aeronautics Space Administration) and NOAA (The National Oceanic and Atmospheric Administration) were roughly twenty-five billion dollars. A lot of money 
to discover what lies beyond the stars and what rests at the bottom of our ocean floors! We love mystery, because we have been wired for God who is infinite mystery.
Rarely do we envision the call and the responsibility of becoming a mystic ourselves, and yet, as a response to the grace we have received at baptism, the Church sounds the call: dive deep into contemplation and ‘the holy mysteries’ and become the mystic God intended you to be!
Art for this post on being called to be a mystic: Teresa of Avila, Peter Paul Rubens, 1615, CCA-SA 3.0 Unported; Modified detail of Mother Teresa, Evert Odekerken, 1988, CCA 2.5 Generic; modified detail St. Catherine of Siena, 1746, Giovanni Batista Tiepolo, PD-US author’s life plus 100 years or less; St. Gregory of Narek Portrait, Hovhannes Asatryan SutiComposer, own work, 15 December 2015, CCA-SA 4.0 International; all Wikimedia Commons; Quintuplet Cluster, NASA, image feature 557, undated, Public Domain.