In this chapter, we learn that air gear is more effective than sleeping gear when it comes to dealing with the enemy. For example, if you're dealing with a dog, you can't just attack the dog until he's in the air. You have to wait until the dog is in their zone before you can attack him. This means that if you want to attack a bird, you have to attack it while the bird is in its zone. In other words, you've got to attack the bird while it's still in its own zone. This is why air gear works so well. It's not like you can just run around and attack a dog. You can attack someone while they're in their own zone, and that's just how it works. In this case, the dog and the bird are already in their zones, so you have no choice but to attack them now.