Teen Wolf, Season 4

[Derek and Stiles are trying to help Liam with his control when the full moon rises]

Derek:
Liam, you with me? We have a mantra that we use. You repeat it, you focus on the words. It's like meditating.

Liam:
[struggling] Okay, okay, okay! What are the words?

Derek:
Okay, look at the triskelion. See the symbol? I have a tattoo on my back, it's the same thing. Each spiral means something.

Stiles:
Alpha, Beta, Omega.

Derek:
It represents the idea that we can always rise to one and fall back to another. [...] All you ave to do is say the three words, and with each one, you tell yourself you're getting calmer, more in control.