My favorite yoga teacher often starts our classes with this quote. I asked him for the source and he sent me to a book called Bicycling Bliss by Portia H. Masterson. While trying to contact the author for permission to use her words, I learned that she died a few years ago. So I continue spreading her good words in the form of this little tunnel book. The pages are lasercut and etched; when fully extended the tunnel book opens to 5.5 inches.