"Join us, brothers and sisters. Join us in the shadows where we stand vigilant. Join us as we carry the duty that cannot be forsworn. And should you perish, know that your sacrifice will not be forgotten... and that one day, we shall join you." - Various parties in DA, notably Alistair
It's just the perfect way to set up the Joining ritual, and it gave me the chills the first time I heard it. Not the most pleasant thing to hear before you die.
BTW, the Joining will apparently play a large part in the expansion coming next month. All the more reason I chose this quote.