To have a vision is essentially to know—deep down—why you are doing what you do. This is well illustrated in the story of the Italian stonecutters told by the psychotherapist Roberto Assagioli. A visitor to a stone quarry asked a stonecutter what he was doing. "Don't you see," he replied a little sourly, "I'm cutting stones," thus showing his dislike of what he regarded as unpleasant and valueless work.
The visitor passed on and put the same question to another stonecutter. "I'm earning a living for myself and my family," replied the workman in an even tempered way that reflected a certain satisfaction.
Further on, the visitor stopped by a third stonecutter and asked him: "And what are you doing?" This third stonecutter replied joyously: "I am building a Cathedral." He had grasped the big picture. This potentially tedious and demanding task was part of the great vision for a Cathedral. His efforts were as necessary as the architect's, and carried equal value.
Therefore, he was performing his work not only willingly, but with enthusiasm. If you keep your focus on the big picture—the long term vision—then the cares of today will take care of themselves.