Holding on to an aim in life gives meaning to ones life. Put things in perspective, mold them and make them into a reality. Sometimes it needs time and sometimes pain and endurance. The one thing that characterizes the realization of all dreams in life is effort. Effort channeled through careful planing brings results.
Some people lack the vision to 'see' things.
They give up too soon when things get tough forgetting that such is the time the tough should get going. In my life, my dream burns like wild fire. It is alive because I can see it in perspective and its very crystal clear. It hunts me the same way I hunt it - everyday by the hour. It lives in me, and in many others, like an obsession in the physical, mental and psycological planes.