A story is told of a man who always payed to God about the kind of job he wanted; a well paying job that will enable him to drive a big nice car and be surrounded by beautiful ladies. He prayed and believed and his prayers were answered. He got a good well paying job; as a bus driver in a girls’ school.Funny right? 
The concept is simple, don’t be vague when praying. No, it’s not because God doesn’t know what you want, it’s for your own good. When you figure out exactly what you want and pray for it, you are having the end in mind. You see clearly where you want to be and this helps you define your goals, both short-term and long-term. 

Because you see where you want to be, you will only take the path that leads you there, through your words and your deeds. By praying about it, you not only confess what you want, but these prayers remind you, of where you want to be. 

Be careful what you pray for.