St Ignatius of Loyola, Ora pro nobis.
"Receive, Lord, all my liberty, my memory, my understanding and my whole will. You have given me all that I have, all that I am, and I surrender all to your divine will, that you dispose of me. Give me only your love and your grace. With this I am rich enough, and I have no more to ask."
(One of my fav prayers, yes..another one-lol, I have a many favorite prayers.)