Ask and You Shall Receive.

"Ask and it will be given to you; seek and you will find; knock and the door will be opened to you." - Matthewe 7:7

This is one of my favorite bible passages. Very simply saying: If you know what it is that you want, you are probably going to get it. People always say "Be careful what you wish for because you just might get it." I have found this to be true in so many cases. That is why now I'm sure to only ask for good things and I like my thoughts to be positive. So in other words, we should know what we want so we will get it.
The bible passage also says: Seek and you shall find. In my own personal experience I believe that we should seek wisdom and guidance from God.