(Morgana is about to sacrifice Morgause)
Morgana: I can't do this.
Morgause: Sister... remember what I've told you. It is the only way. What you are about to do will affect everyone, even you. But most importantly, it will bring our enemies to their knees. You must be strong and remember that. Do not be scared. I am not long for this world. There is nothing left for me here now. Please, sister... let my parting be my final gift to you.