Right Place. Right Time.

  'Kids, I've been telling you the story of how I met your mother, and while there's many things to learn from this story, this may be the biggest. The great moments of your life won't necessarily be the things you do, they'll also be the things that happen to you. Now, I'm not saying you can't take action to affect the outcome of your life, you have to take action, and you will. But never forget that on any day, you can step out the front door and your whole life can change forever. You see, the universe has a plan kids, and that plan is always in motion. A butterfly flaps its wings, and it starts to rain. It's a scary thought but it's also kind of wonderful. All these little parts of the machine constantly working, making sure that you end up exactly where you're supposed to be, exactly when you're supposed to be there. The right place at the right time.' 

source:

How I Met Your Mother

(the narrator)