This post is chock full of spoilers. Seriously, all the spoilers. If you haven’t watched Buffy, you should stop reading and start Netflixing now. Come back when you’ve finished all seven seasons.
The first rule, the first truth, the first thing we know in entire series of the Buffy the Vampire Slayer TV show comes from a voiceover repeated to us over and over at the beginning of each episode in the first two seasons: “In every generation there is a Chosen One. She alone will stand against the vampires, the demons, and the forces of darkness. She is the Slayer.”
As we do in any fantasy series, and too often in reality, we accept the rules of the world as they’ve been laid out for us. This is how things are! It’s the status quo, and we never question it.