Following Teresa's lead in attempting to reform his Order, John, in 1568, initiated a very severe form of monasticism in a tiny farmhouse. These monks went so far as to go barefoot, indicating their commitment to poverty, lending to them the appellation of "Discalced" or "shoeless." Over time, a rift arose between the traditional Carmelites and John's Discalced Carmelites, leading in 1576 to John's arrest and imprisonment. During this period of imprisonment, John wrote much of the poetry that would provide his greatest contribution to later generations.
Eventually, the rights of the Discalceds were recognized, and John took on various roles of leadership within the order. After some fifteen years of leadership, he died in 1591, leaving behind a number of remarkable works of Christian mysticism: Ascent of Mount Carmel, Dark Night of the Soul, and the Spiritual Canticle of the Soul."
-- Biography taken from Poem Hunter
Holy Father John of the Cross, pray for us!
"Oh, then, soul, most beautiful among all creatures, so anxious to know the dwelling place of your Beloved so you may go in search of him and be united with him, now we are telling you that you yourself are his dwelling and his secret inner room and hiding place. There is reason for you to be elated and joyful in seeing that all your good and hope is so close as to be within you, or better, that you cannot be without him. Behold, exclaims the Bridegroom, the kingdom of God is within you [Lk. 17:21]. And his servant, the apostle St. Paul, declares: You are the temple of God [2 Cor. 6:16].
It brings special happiness to a person to understand that God is never absent, not even from a soul in mortal sin (and how much less from one in the state of grace).
What more do you want, O soul! And what else do you search for outside, when within yourself you possess your riches, delights, satisfaction, fullness, and kingdom - your Beloved whom you desire and seek? Be joyful and gladdened in your interior recollection with him, for you have him so close to you. Desire him there, adore him there. Do not go in pursuit of him outside yourself. You will only become distracted and wearied thereby, and you shall not find him, or enjoy him more securely, or sooner, or more intimately than by seeking him within you. There is but one difficulty: Even though he does abide within you, he is hidden. Nevertheless, it is vital for you to know his hiding place so you may search for him there with assuredness. And this, soul, is also what you ask, when with the affection of love you question: "Where have you hidden?""
-- Spiritual Canticle by St John of the Cross