To me, all creativity is magic. Ideas start out in the empty void of your head - and they end up as a material thing, like a book you can hold in your hand. That is the magical process. It's an alchemical thing. Yes, we do get the gold out of it but that's not the most important thing. It's the work itself.
The only way you can write the truth is to assume that what you set down will never be read. Not by any other person, and not even by yourself at some later date. Otherwise you begin excusing yourself. You must see the writing as emerging like a long scroll of ink from the index finger of your right hand; you must see your left hand erasing it.