The master explains that he doesn't recommend practicing the martial art because it's too dangerous. It's also called a "double edged sword," which means that if you practice improperly, you'll hurt yourself. If you practice the sword incorrectly, you won't be able to balance the energy in your body properly, which will cause you to injure yourself. So, you need to find someone who can practice the art with you. You need to follow specific conditions during the practice, so that you don't get hurt by the sword. For example, if the woman you're training with is under 30, she's got to be healthy, she has to not have had any serious illnesses, and she can't have been allergic to any kind of pollen. And finally, the woman who's training with you has to be under 30, have had no serious illnesses in the past, and have never had any sort of allergy to anything. Okay, so everything's going according to plan.