Focus

It's true, what we focus on, happens. Whether good or bad (Though inherently, nothing is either good nor bad. Only our interpretation of it makes it so.)

Focus is one of the strongest force in the universe. 

We have to admire the child who decides to be a doctor, scientist or policeman and works at it for the rest of his life. The rest of us, however, do spend a lifetime trying to understand the meaning of life, what we're here for, what's our purpose, etc...We could miss life altogether by doing so.

We need to make a call. Choose what we want to focus on. The opportunities are endless. Our problem is often that we don't know what we want. Nor do we want to miss a good opportunity by being too focused. The world is a big and interesting place and there is so much to do, why should I waste it by narrowing my choices? It's this kind of thinking that allows us to waste our lives. It's true, you can do anything you put your mind to. Yet that's too general, you need to decide what you want, what you need, or what you're good at. 

Then focus your efforts on it.