In this chapter, we learn that swords with "spirits" are extremely valuable weapons. When a sword has a spirit, its powers increase, and its user will be strengthened as well. In other words, a sword with a spirit will be able to do more than just fight. It will also help the other person who uses it. This is the first time we've heard of a "spirit" in a sword, so we're not sure what to make of it. We're guessing that it's some kind of magical force that powers a weapon, but we don't know what it is yet. It's not clear whether the spirit is a physical force or a spiritual force, but it does seem to have some sort of magical power. So, if you're looking for a sword that has a magical power, this is the one for you.