In many Eastern traditions, the number represents completion and eternity.
: It could be a description of a specific handmade paper grade used for Zen art, where the "9" denotes the texture or weight. 3. Historical or Literary Archives
: The phrase "Days of Peace and Ease" was commonly used in personal journals or newspapers following the end of major conflicts (like WWII) to describe the transition back to civilian life.
: This could be a reference to a specific numbered piece (e.g., Akari 9A) or a chapter in a retrospective paper about his work during the post-war era. 2. Buddhist or Philosophical Symbolism 9 : Days of Peace and Ease