Spiral As a symbol
 Spirals are also a symbol of hypnosis. They are also used as a symbol of dizziness, where the eyes of a cartoon character, especially in anime and manga, will turn into spirals to show they are dizzy or dazed. The spiral is also a prominent symbol in the anime 'Gurren Lagann', where it symbolizes the double helix structure of DNA, representing biological evolution, and the spiral structure of a galaxy, representing universal evolution.