Forms of Christian mysticism
The many forms that Christian mysticism has taken during the last two millennia can be divided into three broad types. These types, however, should not be seen as mutually exclusive, since some mystics make use of all of them.
Christ-mysticism
The earliest form of Christian mysticism was the Christ-mysticism of Paul and John. Although Christian mysticism in its traditional expression has centred on the desire for union with God, Christ-mysticism has always been present in the church. The Eastern Church emphasized the divine Light that appeared to the disciples at the Transfiguration, and mystics sought to identify with this light of Christ in his divine glory. Symeon says of a certain mystic that “he possessed Christ wholly.… He was in fact entirely Christ.” As a result of the influence of Augustine, in the Catholic West it is in and through the one Christ, the union of Head and body that is the church, that humans come to experience God. For Augustine the mystical life is Christ “transforming us into himself” (Homily on Psalm, 32.2.2). During the Middle Ages some of the most profound expressions of Christ-mysticism were voiced by women mystics, such as Catherine of Siena and Julian of Norwich. Luis de León spoke of the theopathic life in terms of Christ-mysticism: “The very Spirit of Christ comes and is united with the soul—nay, is infused throughout its being, as though he were soul of its soul indeed.”
The Protestant attempt to return to primitive Christianity has led to strong affirmations of Christ-mysticism. The early Quaker George Keith wrote that Christ is born spiritually in humanity when “his life and spirit are united unto the soul.” The chief representative of Christ-mysticism among the early Protestants, Kaspar Schwenckfeld, held that Christ was from all eternity the God-man, and as such he possessed a body of spiritual flesh in which he lived on Earth and which he now possesses in heaven. In his exalted life Christ unites himself inwardly with human souls and imparts to them his own divinity.
Trinitarian mysticism
Pure God-mysticism is rare in Christianity, though not unknown, as Catherine of Genoa shows. Christ as God incarnate is the Word, the second Person of the Trinity, and Christian mysticism has, from an early era, exhibited a strong Trinitarian dimension, though this has been understood in different ways. What ties the diverse forms of Trinitarian mysticism together is the insistence that through Christ the Christian comes to partake of the inner life of the Trinity. The mysticism of Origen, for example, emphasizes the marriage of the Word and the soul within the union of Christ and the church but holds out the promise that through this action souls will be made capable of receiving the Father (First Principles, 3.6.9). The mystical thought of Augustine and his medieval followers, such as Richard of Saint-Victor, William of Saint-Thierry, and Bonaventure, is deeply Trinitarian. Meister Eckhart taught that the soul’s indistinction from God meant that it was to be identified with the inner life of the Trinity—that is, with the Father giving birth to the Son, the Son being born, and the Holy Spirit proceeding from both. A similar teaching is found in Ruysbroeck. John of the Cross wrote of mystical union that “it would not be a true and total transformation if the soul were not transformed into the three Persons of the Most Holy Trinity” (Spiritual Canticle, stanza 39.3). Such strong Trinitarian emphasis is rarer, but not absent from Protestant mysticism.
Negative mysticism: God and the Godhead
The most daring forms of Christian mysticism have emphasized the absolute unknowability of God. They suggest that true contact with the transcendent involves going beyond all that we speak of as God—even the Trinity—to an inner “God beyond God,” a divine Darkness or Desert in which all distinction is lost. This form of “mystical atheism” has seemed suspicious to established religion; its adherents have usually tried to calm the suspicions of the orthodox by an insistence on the necessity, though incompleteness, of the affirmative ways to God. One of the earliest and most important exponents of this teaching was the Pseudo-Dionysius, who distinguished “the super-essential Godhead” from all positive terms ascribed to God, even the Trinity (The Divine Names, chapter 13). In the West this tradition emerged later; it is first found in Erigena in the 9th century and is especially evident in the Rhineland school in the 13th and 14th centuries. According to Eckhart, even being and goodness are “garments” or “veils” under which God is hidden. In inviting his hearers to “break through” to the hidden Godhead, he exclaimed, “Let us pray to God that we may be free of ‘God,’ and that we may apprehend and rejoice in that everlasting truth in which the highest angel and the fly and the soul are equal” (German Sermons, 52). The notion of the hidden Godhead was renewed in the teaching of Jakob Böhme, who spoke of it as the Ungrund—“the great Mystery,” “the Abyss,” “the eternal Stillness.” He stressed the fact of divine becoming (in a nontemporal sense): God is eternally the dark mystery of which nothing can be said but ever puts on the nature of light, love, and goodness wherein the divine is revealed to human beings.