Mark 11;24: Therefore I say to you, whatever things you ask when you pray, believe that you will recieve them, and you will have them.
Everytime I read this verse I helps me with my daily prayers. Just knowing that God is listening and understanding helps me and the idea that I actually believe this assures me that God will show me a response.
It is an unbelivable gift from God to have prayer and it is comforting to know that he answers them.

Mark 11:24