Equally, in relation to visual art, no two viewers experience an artwork in the same way, so the artwork remains a work in progress in that same sense.
In my view, it also remains eternally unfinished in a second sense, i.e. when you consider and value the material you work with as an artist as an entity in its own right, a living thing with a story of its own - think of the story encapsulated in a marble carving: the millions of years of formation, the quarrying, the becoming a work of art, and very importantly the continuing to be.
Since what you make as an artist continues to live beyond your intervention (and the material 'lived'/had a life before you came into contact with it), you make a relatively brief appearance in the story of the material you are interacting with.
Everything around us has a 'life', a story; everything is continuously changing, often so slowly that we think of it as constant.
