Watched a beautiful Martin Scorsese movie, Hugo. 

Hugo: He's got real...purpose

Isabelle: What do you mean?

Hugo: Everything got a purpose..Clocks tell the time and trains take you places. They do what they are meant to do. Like Monsieur Labisse. May be that's why broken machines make me so sad. They can't do what they are meant to do.

May be it's the same with people.
If you lose your purpose, it's like you are broken.

Isabelle: Like Papa George. May be we can fix him. Is that your purpose, fixing things?

Hugo:I don't know, that's what my father did.

Isabelle: I wonder what my purpose is.