Have you ever read the book, "Zen Mind, Beginner's Mind"? The basic idea is that we can make great progress on our journey by approaching everything with an open, beginner's mind, for it is in this state that we are ready to be taught, we are ready to see, and we are ready to understand. The expert who already knows everything might not ever see the truth.
While I like to think of myself as a kalimba expert, I do get knocked on my (musical) butt quite often. So really, I am only an expert at playing in the fairly narrow musical style that I know how to play.
For me, to learn mbira music on the kalimba is a leveling experience. The thumb patterns required to play this music on kalimba are so foreign that I have been brought down to the level of "total beginner."