We know that ultimately God is in control and as you state ultimately acknowledge that it is His will not ours to be done.... however, don't you think that sometimes this hampers one's faith? In other words, one may pray fervently for someone's healing but then as if doubt actually enters when they close, "never the less, not my will but Your will be done". I feel like that is a way out for some, for lack of a better phrase. God's word tells us that if we have faith as a grain of mustard seed we can move mountains, but pure faith leaves no room for doubt and I feel so many of us in our prayers leave that door cracked that allows doubt to enter which in turn isn't pure faith. My sister and I had this conversation several years back when they had a pastor that preached on prayer and being specific and purposeful in their prayers. With an expectation that God not only hears but will answer (within reason of course, we're not talking selfish desires here).... not sure if I'm making my point to well but I'm guessing a theologically trained pastor will be able to decipher and answer