Relating back to modern day, science has revealed what lies behind the shower's creative, juice flowing power. The neuroscience of creativity has illustrated that it's not a serendipitous reaction, but actually an essential state of creativity. A good shower releases dopamine in the brain and engender a distracted mind that lets you to think and wonder.
This is the general outline for the creative process so it's no wonder taking a shower promotes ideas. When you have been engulfed in a project after being focused on it for a certain length of time, your brain needs a healthy distraction and relaxation--a creative pause. So if you find yourself needing a creative break or need to go to a place to be able to think freely, hop in the shower and allow your mind to relax and wonder. It will either be the most productive shower or it will simply be a much needed and enjoyable break.
Photograph by Amanda Tipton