Brushing up on Wabi Sabi
The simplicity of wabi-sabi is probably best described as the state of grace arrived at by a sober, modest, heartfelt intelligence. The main strategy of this intelligence is economy of means. Pare down to the essence, but don't remove the poetry. Keep things clean and unencumbered, but don't sterilize. (Things wabi-sabi are emotionally warm, never cold.) Usually this implies a limited palette of materials. It also means keeping conspicuous features to a minimum. But it doesn't mean removing the invisible connective tissue that somehow binds the elements into a meaningful whole. It also doesn't mean in any way diminishing something's "interestingness," the quality that compels us to look at that something over, and over, and over again.
Leonard Koren, Wabi-Sabi for Artists, Designers, Poets & Philosophers