Too often overlooked or poorly applied, this stage nevertheless remains essential in the practice of kintsugi. Indispensable to the final aesthetic of the piece, it is a crucial moment—often little known—that can be repeated as many times as necessary to achieve perfection. In kintsugi, we generally celebrate the brilliance of gold, that light which highlights the fracture and reveals the beauty born from the wound. But before the gold comes the time of filling.