Along these lines there is also the aesthetic, or philosophy, of Kintsugi. Kintsugi roughly translates to 'fixing with gold' or something like that. If you drop a piece of pottery then the pieces are put back together with a gold 'glue' and often times looks better then the original but preserves and even honors the brokenness of the piece as it exists on in the future.
Luthiers always make mistakes and we strive to cover them up on our finished instruments. The master luthier is the one who makes less mistakes and is better at hiding the ones he makes. So if you drop a chisel on your wabi sabi guitar just leave the mark, or even bring attention to it, as a testament to our human frailty
