What is Christian Mysticism? New Age Spirituality and Contemplative prayer, and a list of other heretical practices that are not consistent with Christianity. In 2 Tim. 4:3,4 it says; "For the time will come when they will not endure sound doctrine; but wanting to have their ears tickled, they will accumulate for themselves teachers in accordance to there own desires, and will turn away their ears from the truth and will turn aside to myths.
Gary Gilley's new book: "This little church had none - A Church in search of the Truth", in the chapter titled: 'The Emergent Church goes Ancient' , Gilley explains that there is a keen interest in Mysticism and also an attraction to mystics such as Meister Eckhard, Teresa of Avila, John of the Cross, George Fox, William Law and Thomas Merton. Gilley writes this on mysticism: "the whole goal of mysticism is to experience something in a super-rational way."
If you are interested in learning more about the dangers of mysticism in the church, what it is, and it's affects on biblical christianity this book is a good starter on mysticism in the church.