Book About Purpose Novels & Stories

I asked out of curiosity. "Amaya, do you understand the soul purpose of a chosen one?" He suddenly asked me making me frown. Of course, I knew. "Yes, to protect the sacred book," I said. "And how do you think you will have to accomplish that?" His question made me ponder for a long while. I didn't know what he meant by that. "I don't know," I finally said after a while of thinking. "The sacred book is unbreakable. So to prevent wrong hands from getting a hold of it you would of course have to take the power it holds to yourself." I didn't quite comprehend where he was getting at until it hit me.