Pop Magic! by Grant Morrison

All you need to begin the practice of magic is concentration, imagination and the ability to laugh at yourself and learn from mistakes. Some people like to dress up as Egyptians or monks to get themselves in the mood; others wear animal masks or Barbarella costumes. The use of ritual paraphernalia functions as an aid to the imagination only. Anything you can imagine, anything you can symbolize, can be made to produce magical changes in your environment.

via Pop Magic! by Grant Morrison.