It's also what the guy that figured out organic chemistry dreamed. He dreamed he was walking down a street and then saw a snake. The snake turned and grabbed its own tail forming a hoop. I started rolling down the street. He woke up. Up to that point in chemisty they only thought elements were connect in staight lines. This guys dream gave him the idea that in living materials, they were circular. At least that's what I remember from chemistry. It was a huge discovery and started the 'organic' line of chemistry.