In traditional Karazenpo go Shinjutsu (KGS), you bring your new belt and new uniform to the ocean. Soak them in the ocean water. Let the water saturate the belt and uniform. This blesses them with the spirit of the ocean and provides you with the strength of the seas. This is called the Hawaiian Blessing. It’s a wonderful custom that was forgotten by many schools and instructors.
Another custom of KGS is twisting the belt. Twisting of the newly awarded belt takes some of the newness out of it. Usually, they come out of the wrapper and into the hands of the recently advanced student. The belts are stiff and nearly untieable. The twisting or breaking-in of the belt signifies the efforts you put into training. It also represents the fact that you are not new even though you have a new rank.
During Black Belt ceremonies, there is a custom of breathing into belts. Breathing into the belt transmits the spirit of the Testing Board into the new belt. The master or grandmaster put a bit of their knowledge into your belt. The belt (also known as obi) represents your knowledge of the art and loyalty to the school. This custom links you spiritually to the lineage of your ancestral teachers.
Black Belts also have another custom issued by the master. Getting hit by the belt signifies the combat element of the art. It demonstrates you can take punishment and hardship. The ceremonial hit also symbolically tempers the spirit, forging your perseverance and reminding you of humility.
Finally, newly ranked Black Belts drink a shot of saki when the Testing Board presents it. This ceremonial drink represents camaraderie–sharing a drink with your fellow students. You are now a member of the Yudansha, the Black Belts of the school. You have earned the right to represent the school because of your diligence in training and skill in techniques.
These are some of the more interesting customs found in Karazenpo go Shinjutsu. There are undoubtedly more. Does your school have a custom? Tell us about it in the comments.