I put that at the front of the book, before any chapter. A nucleus appearing where nothing was.

My Elder had a deep knowledge of Medicine, and numerous people were helped by it. What he joined in himself was scientific perception, which rests in practice on the study of the microscope, and intuitive understanding, which rests on the opening of the heart. I am a physician myself. That union was what let me take the truths of his teaching seriously, and that one image set the register for everything that came after it.

What follows is harder. Free will, authorised by Divine Power, can alter the very structure of that minuscule entity, can restore order to the information held inside it. I have not softened it. I set it down the way he set it in front of me, and let it stand.