Not long ago I read this great quote by Phillip Yancey about a documentary he watched on WWII:

"The soldiers recalled how they spent a particular day. One sat in a foxhole all day; once or twice, a German tank drove by, and he shot at it. Others played cards and frittered away the time. A few got involved in furious firefights. Mostly, the day passed like any other day for an infantryman on the front. Later they learned they had just participated in one of the largest, most decisive engagements of the war, the Battle of the Bulge. It did not feel decisive to any of them at the time, because none had the big picture of what was happening elsewhere.   

Great victories are won when ordinary people execute their assigned tasks - and a faithful person does not debate each day whether he or she is in the mood to follow the sergeant's orders or show up at a boring job. We exercise faith by responding to the task that lies before us, for we have control only over our actions in the present moment."