I read that less than 10% of our thoughts on any given day are just rewinds: thoughts we repeat over and over. As I listen to my thoughts I'm persuaded this is true; redundant repeats, like a song that gets stuck in your head. So when I read this quote it revealed why I love to read, doing so ushers in new material and creative thought that refreshes my mind and relieves me of my "ennui" of thoughts.