A person's nature can be recognized through three things: his cup, his purse, and his anger.
--- Talmud Eruvin 65b
God has no limits so why should your prayers?
That's what I was thinking when I was in my early teens. I saw how difficult things were for me to grow up even in a good environment, what would it be like for my future wife? Perhaps things may even be more difficult for her. So I decided then to start praying for her, who ever she may be. Years and many prayers later I really think those prayers made a difference. I was the first boy my wife ever went out with and never had to deal with the ups and downs of finding ones match. Her life was filled with turns always leading more positive and spiritual.