Life is often like one big quest, straight from your favorite medieval fanstasy story. You don't always know what the end result of the quest will look like, but you have a vague idea of where you're going and what you're supposed to do. And every step of the path brings you closer, every adventure leaves you better prepared, and every action could help or hinder you in your journey. If life's a quest, how are you going to approach it?
Oh, never read fanstasy stories or played role playing games? You're missing out on a pretty big part of life, my friend.