“It is not neglecting or underestimating the therapist's expertise to say that often he and his patient find themselves in the position of two mountain climbers. Roped to each other and dependent on each other, they struggle to scale the peak. Either one can slip, and each must be able to count on the other to take those steps that will save the situation. If one loses ground, they lose ground together, then regain their footing and go forward, much closer for having been in danger and helped each other out of it.”