Some people are used to read prayers written by others; they have trouble saying their own. Some don't consider themselves to be contemplatives and have to rely upon words. And there are numerous books out there teaching you how to pray. Of course, the goal is to be drawn close to God. Let me say that if this is your goal, all you need to do is to open yourself up to God, surrendering to him, and he will draw you to him in no time. As long as you do not abandon yourself completely to him, you can read a thousand of these books and pray all you want, it won't draw you any closer to him. As Jesus said in Matthew 26.41: The spirit is willing, but the flesh is weak. Here the flesh is your own pride. Only God can draw you to him, but you have to let him do it.