It is not unprecedented that a school of philosophical thought is turned into a method of psychotherapy. Sartre, for instance, theorized about developing a form of therapy called existential psychoanalysis, and Rollo May used the writings of Sartre and other existentialists to establish it. The approach emphasizes the need for understanding patients through grasping their total orientation toward the world and helping them realize their freedom of will and ability to determine their own destiny.
In America's current cultural climate, in these dog days of advanced capitalism when we medicate rather than substantiate, isn't that a blast of fresh air? A holistic approach to understanding your situation that empowers you to change it.