Be not passive mystics.  Christian mysticism bordered on unreality; philosophically akin to pantheism.  Factors which induce mystic state.  May become technique of reality avoidance.  Mystic state characterized by diffusion of consciousness with vivid islands of focal attention.  Mystics do not correctly visualize reality.  Practical validations.  Practice of presence of God is altogether praiseworthy.  Product of mortal intellect indistinguishable from that of Adjuster.  Reprehensible when leads to isolation or fanaticism. 
See also: UB 100:5.