World, Generation
The world radical and the world kanji are the same, but there is another really important meaning you need to know: generation. Think of it this way: the world is just made up of many different generations of people, plants, and animals all getting along together.
It's all these generational differences that make the world go 'round!
せい, せ
よ
None
It's your job to protect the world and every generation with your special saber (せい). It was given to you to uphold correctness, and you'll pass it on to the next generation when it's time. Then they'll watch out for the world when you're gone.
Hold the saber up high and pledge to protect the world for all of the generations to come! Then swish it around and make buzzing sounds with your mouth.