1. Cleaning When polishing bodhi, carefully clean it first, mainly by soaking it in warm water for about half an hour to soften the pulp or residue inside, and then remove the debris with a wire brush or crochet, so as to facilitate better polishing and achieve better results. 2. After rough grinding, clean the dirt inside and put it in a cool environment to dry. When it is completely dry, you can polish the outer skin with rough sandpaper and brush it with bristles for several times to increase the color, so that the deep dust and debris can be cleaned up. 3. After fine grinding, it can be polished with fine sandpaper, mainly to repair the outline of the edge or line, which will make the texture on it look more vivid. After polishing, you can punch holes and polish them according to your own needs, and then wear them on your hands to play with them, which will look more beautiful.