There's much similarity between life and a football/soccer game.

Now let's imagine for a minute, a football game. All the players are well prepared, the referees are all set in their positions, the fans are screaming on top of their voices.
And then the whistle is blown for the kick off.

The players run into the field, lo and behold, there's no goal post. What do you think would happen?
There's no aim of the game, the players would just keep running around with no aim.

That's how life is when you don't set goals.

Think about it.