Very few people are capable of making a decision. We "opt" all over the place, but opting is not the same thing as deciding.
Let me explain. The normal human creature is one for whom the animal core of the psyche is wholly invisible. It is categorically impossible for this creature to recognize the weight of undiluted great ape influencing its behavior, and since its core animal responses are taken as personal volition to say that this creature is capable of "deciding" as opposed to "opting" is doing it a decided disfavor.
Deciding and opting share the same territory in that they both reflect the resonance of the external within the domain of the internal. The point being that if the interior of our being is an unexplored mystery our responses to the external demands of life will be in large measure that of an automaton.
Self control is a necessary social discipline, but it is miles away from the ability to decide ones state of being. And since most people are in large measure automatons that respond in predictable and inevitable ways there is great value in being able to decide what to be.
The what determines the how. If we are capable of being what we need to be in a given situation the how takes care of it's self. This is a skill that makes life better for all that it touches: initiates and ordinary people alike, and meditation is the exercise which makes possible this magic
That cultivation of pure awareness which we practice in meditation gently pulls back the curtain behind which our animal nature operates. When awareness recognizes and befriends the natural animal, the animal is no longer a slave to the millions of years of darkness from which it has emerged: there is a metamorphosis; it has become the wand, the magic carpet, the wish fulfilling gem.
Of the many fruits of meditation one of the sweetest is intentional being, as the children of the earth are reborn as the children of the universe.