Wabi-sabi is a Japanese philosophical view based on the acceptance and beauty of imperfection, transience, and simplicity. It means appreciating the authenticity of objects and embracing their flaws rather than constantly purchasing new, flawless items.
Wabi is associated with finding beauty in the understated, relating to the natural world. Sabi is related to the passage of time and beauty that comes with age and wear. This relates to the natural cycle of growth and decay.