McCartneyism is the practice of taking mind-altering drugs to open ones mind to divine inspiration, and make the world around you a better, happier place. Many famous artists have looked to McCartneyism for inspirations in their work. Such famous examples include: Oscar Wilde, Your Mom, Cookie Monster, Keith Richards, Adolf Hitler, Leonard Bernstein, and The Beatles. The Beatles were so crucial to the development and spread of McCartneyism that the practice was named after one of their members, Paul McCartney.