Teen Wolf, Season 4

[Kira, who has been stabbed in the chest, is fading fast and is crying in fear. Suddenly her mother's astral projection comes to comfort her]

Noshiko:
It's all right to cry. It's no measure of your strength.

Kira:
But I'm not strong. I need to get up. I need to tell them...

Noshiko:
How do you know you can't?

Kira:
Because I'm not healing. You told me why I never get sick. And you said I'd learn to heal...

Noshiko:
Then learn.

Kira:
I can't. I don't know how, or where to start.

Noshiko:
I told you once that foxes and wolves tend not to get along. But they are similar creatures, aren't they? You've seen wolves heal. How do they do it? Kira, how do they trigger it?

Kira:
[gasps] Pain. With pain.