What is katoribatsu unsai?

Katoribatsu Unsai refers to a traditional Japanese martial arts training practice that involves the student standing alone for an extended period of time as they receive critique and instruction from their teacher. The term "katoribatsu" literally translates to "bird perching punishment," as the student is meant to stand as still and quietly as a bird perched on a branch. The practice is seen as a way to build focus, discipline, and mental fortitude in martial arts practitioners. The length of time a student spends in katoribatsu unsai varies depending on the level of experience and the goals of the training. It is also used as a form of punishment or to teach respect and humility.