There is a rule for fantasy writers: The more truth you mix in with a lie, the stronger it gets.

Must I accept the barren Gift? -learn death, and lose my Mastery? Then let them know whose blood and breath will take the Gift and set them free: whose is the voice and whose the mind to set at naught the well-sung Game- when finned Finality arrives and calls me by my secret Name. Not old enough to love as yet, but old enough to die, indeed- -the death-fear bites my throat and heart, fanged cousin to the Pale One's breed. But past the fear lies life for all- perhaps for me: and, past my dread, past loss of Mastery and life, the Sea shall yet give up Her dead! Lone Power, I accept your Gift! Freely I make death a part of me; By my accept it is bound into the lives of all the Sea- yet what I do now binds to it a gift I feel of equal worth: I take Death with me, out of Time, and make of it a path, a birth! Let the teeth come! As they tear me, they tear Your ancient hate for aye- -so rage, proud Power! Fail again, and see my blood teach Death to die!

Beware! said the peridxis's voice in her head. Don't let It's shadowy little truth overwhelm the greater one.

Believe something and the Universe is on its way to being changed. Because you've changed, by believing. Once you've changed, other things start to follow. Isn't that the way it works?