I fancy myself humble enough not to ask God for much. I'm honestly grateful that he's blessed me already in so many ways. Aren't I so enlightened? ;-)
The truth is, I deeply believe that I do not know what I should ask for. Sometimes I know what I want, but I'm not always sure what I need.
However, I do know several things God wants. I might even say I know several things God needs. And the sad truth - the simplest fact of this matter - is that I'm normally far too afraid of what it might cost me to pray for those things.