Objective of working

Have you ever thought of this question seriously? Why should you work? What's the point of you going in to the office everyday and face something that may dismay us. Or, who should we work our asses off for?

For me, the idea and objectives are pretty vague. Work for money? Work for ambition? Or, just for the heck of it? I really wonder sometimes. But I guess...it will be all a different story when you have a family of 5 to feed one day.