Like a goal for your life, It is necessary . If you haven't got a goal, You don't know the next step. East or west? North or south? You don't know. You can't walk. Finally you say " whatever". A great man always has got a clear purpose. Before he starts, He says, " I'll go to a place where the sun raise". So he walks and walks to the east. Can't he get there? So setting up a goal is the first step. Then make a plan for this goal.