This book is phenomenal. I can't recommend it highly enough. The last section is hardly religious; instead it focuses on the positive power that propels us forward. The author acknowledges that he believes in God and uses the words "muse" and "angels", but in the first chapter of the last section makes it clear that labels matter very little--you can just call it talent encoded in your genes due to years of evolution if you want. The points he makes are highly relevant and thought-provoking, no matter your faith or lack thereof.
The first two sections of this book were useful. They amount to a swift kick in the rear to get you moving on something if you're stuck. The third section (and some of the rest) was much less interesting, as it degenerates into essentially religious muck that had no place in this volume (at least in my opinion).
If you're stuck on some new project - be it art or anything else - and you need someone to tell you to "Get Moving!" section 1 & 2 are a place to turn. Personally, I found section 3 pointless and his emphasis on religion problematic.