You are energized by what you constantly see. Many successful people place pictures of their families on their desks. Looking at one's spouse or children energizes them to keep pushing ahead. These pictures remind them of who they are really working for.
Also, many highly successful leaders place pictures of their foes in their offices. The Microsoft team that was dedicated to unseating Sun Microsystems as a force in servers plastered their office walls with Scott McNealy's, Sun's CEO, picture. They were constantly reminded that their enemy was close at hand. Every time Microsoft won a battle against Sun, the Microsoft team would remove one of Scott McNealy's pictures from their walls.
From the first day as Lord of the Admiralty of the British Navy, Winston Churchill had a large chart of the North Sea hung on the wall behind his desk. Then, every day the duty officer marked with small flags the position of the principal ships of the German Navy. Each morning, on entering the room, Churchill stood before the chart and studied the whereabouts of the High Seas Fleet. His purpose 'was to inculcate in myself and those working with me a sense of ever-present danger'.
