The book offers a straightforward explanation of the four functions of the mind, according to the ancient wisdom of Yoga Science: the senses, ego, unconscious mind, and the Conscience. Readers are taught how and why to coordinate these four functions in order to live the joyful life we all long for. Our mind is continually generating thoughts which lead to actions, and the Law of Karma states that every action brings about a consequence. Understanding how to harness the power of our thoughts, then, is critical to making choices that lead to positive consequences.