Zen takes the opposite tack; it holds that true reality is the fundamental unity of mind and matter, inner spirit and external world. When life is viewed in such terms, there can be no success or failure, happiness or unhappiness; life is a whole, and you are simply part of it. There are no dualities, hence there is nothing to worry about. The result is perfect tranquility.
Unlike rational thought, intuition cannot be 'taught' or even turned on. In fact, it is impossible to find or manipulate this intuitive consciousness using our rational mind—any more than we can grasp our own hand or see our own eye.