As the author gets, this kind of napping isn't just about sleep or even rest. It's intimately related to creativity. Reverie is not a mind vacuum. It is rather

As the author gets, this kind of napping isn't just about sleep or even rest. It's intimately related to creativity. Reverie is not a mind vacuum. It is rather the gift of an hour which knows the plenitude of the soul. (Gaston Bachelard)