There is an ache which comes when you long for something... you feel your heart pressed against your lungs, your ribs the only thing to keep you from bursting into a million little pieces.
Longing is a good thing... a necessary thing... but it is useless without action. Gandhi once said, "Action expresses priorities." and "Action is no less necessary than thought to the instinctive tendencies of the human frame."
What are you longing for? What do you long to do? Who do you long to become?
Now, hold it close to your chest... and act.