Craftsmanship isn't like water in an earthen pot, to be taken out by the dipperful until it's empty. No, the more drawn out the more remains. - Lloyd Alexander

Find what you want. I will find you.

And so they lived many happy years, and the promised tasks were accomplished. Yet long afterward, when all had passed away into distant memory, there were many who wondered whether King Taran, Queen Eilonwy, and their companions had indeed walked the earth, or whether they had been no more than dreams in a tale set down to beguile children. And, in time, only the bards knew the truth of it.

How then?" Taran asked. "Could The Book of Three deceive you?"
"No, it could not." Dallben said. "The book is thus called because it tells all three parts of our lives: the past, the present, and the future. But it could as well be called a book of 'if.' If you had failed at your tasks; if you had followed an evil path; if you had been slain; if you had not chosen as you did — a thousand 'ifs,' my boy, and many times a thousand. The Book of Three can say no more than 'if' until at the end, of all things that might have been, one alone becomes what really is. For the deeds of a man, not the words of a prophecy, are what shape his destiny.