I don't like painstakingly clenching my teeth to get things done and practice them into my muscle memory, but alas, I have no other option. With proper control of my instrument, I can make so much more than just practice. I can interpret, I can vary, and I can try out new things.
In some sense, I become the music I play. If I want to use that kind of a fake deep comparison. Either way, my playing becomes a thing in itself. After that I only need to share it.