What is hone ga kusaru made?

Hone ga kusaru made is a Japanese phrase that means "until the bones rot." It is often used to convey the idea of persistence and perseverance in the face of adversity, implying that one will continue to work towards a goal or endure hardship until the very end, no matter how difficult or painful it may be. The phrase is commonly used in the context of martial arts training, where students are expected to train relentlessly and push through physical and mental barriers until they reach mastery.