Love this song and it depicts perfectly the burden and call i have felt in my spirit lately.
http://www.youtube.com/watch?v=6smGew7dGto
And let me add...i don't think anything we can do really impresses God much. It's not in the fast or the all night prayer meeting. Its in the sincerity and earnest desire of a heart reaching for him that is manifested in those things that touches God.
I am now the king of run on sentences...