So many of us spend so much time trying to master the instrument, that we forget to be one.
In the Old Testament, most reference to instruments are those used for worship. In the New Testament however, they are more often an allegory - portraying us as Gods instrument. Which when filled by Him, can make beautiful music.
So what kind of instrument are you? And who is playing you?
For even the most worn down, beat up instrument, when in the hands of the musical master, can make amazing sound.