Katara sighed a little in relief as he was evidently all better and turned back to Buffy. She'd told them to be careful. She'd told them that she wouldn't always be there to help. It was really far better for everyone concerned if she didn't deal with Linda and Masaomi right now.

"His chi system - chi is... I've heard some people here describe it like chakra, or... life force. Do you have anything like that in your world?"