Yes, definitely. I pray this way quite often. Just like he is sitting a chair across from you. I find it very helpful. I pray other ways too, but this one is very good for relieving my mind. I feel closer to God. I say just about anything I want (in my head, not out loud) - he can read your thoughts anyway, right? Even if you are burying something underneath structured prayer, are distracted, etc. May as well be honest. I think that probably really impresses him. I see him as pretty unflappable.