Concentrating on soothing and not healing required fine control with this much power at her disposal. It would be so easy to just snap the swollen chi tracks back into place, forcibly calm them once she located the problem. So Katara had to concentrate very carefully.

She knew that Buffy wasn't exactly relaxed just yet, and she didn't blame her, but she was confident this would work if she just found the right amount of power to exert. She started with barely bending and continued until the chi tracks in Buffy's mind lit up like glow worms in her mind and then just - held them. She envisioned her power like ice, like calm, soothing but not moving, enveloping the parts of her mind and life force which had been so traumatized.