I have a wooden bowl from which I eat dry foods, or foods not very wet. Due to ignorance I first neglected the bowl and it cracked a little. Now I know to oil the bowl regularly. Much of the crack is healed, from the inside towards the top, though the tell-tale line, like a scar, remains. The bowl serves faithfully, while quietly reminding me of my own foibles. This is for me an insight into the notion of wabi.